Skip to the color picker

#663a13 color: Cassiterite Brown

#663a13 is rgb(102, 58, 19) in RGB and oklch(39.52% 0.08077 58.156) in OKLCH. Every other format, shade and contrast value is below.

Read as HEX

28°
100%

39.5%
0.081
58°
  • Brown
  • Dark
  • Soft
  • Warm
  • ≈ Coffee
  • yellow-900
  • Black 60%

Inside sRGB: displays the same on any screen.

White text
9.63:1Readable · AA
Lc -96
Black text
2.18:1Hard to read
Lc 12

Shades

From lightest to darkest. Click a shade to use it.

Harmonies

Open as palette

Recent

Colors you stop on or copy appear here. They stay on this device.

About #663a13

#663a13 is a soft dark brown color. In OKLCH it has 39.5% lightness, 0.081 chroma and a hue of 58°.

Inside sRGB: displays the same on any screen.

White text on it reaches 9.63:1 contrast and black text 2.18:1, so white text reads better.

The closest named color is Cassiterite Brown (#623c1f). In Tailwind CSS the closest color is yellow-900.

More dark brown colors

Lighter: #663a13 mixed with white

  1. 663a13
  2. 754c2b
  3. 845f42
  4. 937158
  5. a2856f
  6. b29885
  7. c1ac9d
  8. d0c0b5
  9. e0d5cd
  10. efeae6

Darker: #663a13 mixed with black

  1. 663a13
  2. 58310f
  3. 4a280b
  4. 3c2007
  5. 2f1805
  6. 231003
  7. 170901
  8. 0c0401
  9. 040100
  10. 000000

Calmer: #663a13 with less saturation

  1. 663a13
  2. 633c1b
  3. 603d21
  4. 5d3f27
  5. 5a402c
  6. 574131
  7. 544235
  8. 51433a
  9. 4d443e
  10. 4a4542

Questions about #663a13

What color is #663a13?

#663a13 is soft dark brown. The closest named color is Cassiterite Brown. In RGB it is rgb(102, 58, 19), in HSL hsl(28.19, 68.6%, 23.73%) and in OKLCH oklch(39.52% 0.08077 58.156).

What colors go well with #663a13?

The complementary color of #663a13 is #0e4c6c. For a calmer combination use the analogous colors #6b342d and #584300. The triadic partners are #005446 and #4c3c6c.

Is white or black text more readable on #663a13?

White text reads better on #663a13: white gives a contrast ratio of 9.63:1 and black gives 2.18:1. WCAG AA asks for at least 4.5:1 for body text.

Is #663a13 a warm or cool color?

#663a13 is a warm color. In OKLCH its hue is 58 degrees, its lightness 39.5% and its chroma 0.081.