#281B04

Closest named color: Dark Brown (#341C02). oklch(23.3% 0.042 79.5), rgb(40, 27, 4).

Aa

White text reads best on this color (16.81:1).

About this color

#281B04 is a very dark, muted brown. In OKLCH its lightness is 23%, its chroma 0.042 and its hue 79°. Its hue sits on the warm side of the wheel. The nearest named color is Dark Brown (#341C02), ΔE 0.027 away. White text reads best on it, at 16.81:1.

Hue familyBrowns
Lightnessvery dark (23%)
Chromamuted (0.042)
Temperaturewarm
Nearest nameDark Brown (#341C02)
Black text1.24:1
White text16.81:1

Values

HEX#281B04
RGBrgb(40, 27, 4)
HSLhsl(38, 82%, 9%)
OKLCHoklch(23.3% 0.042 79.5)

Contrast

WCAG 2 contrast ratios are the conformance target: AA needs 4.5:1 for body text and 3:1 for large text, AAA needs 7:1. APCA Lc values are supplementary guidance from the WCAG 3 drafts.

PairWCAG 2ResultAPCAAPCA guidance
White text on #281B04 16.81:1 AAA Lc -106.1 Preferred for body text
Black text on #281B04 1.24:1 Fails Lc 0.0 Not readable
#281B04 text on white 16.81:1 AAA Lc 103.7 Preferred for body text
#281B04 text on black 1.24:1 Fails Lc 0.0 Not readable

Tints and shades

A 50–950 scale built in OKLCH: the hue is held, lightness follows a Tailwind v4-like curve, and every step is kept inside the sRGB gamut. This color sits at step 950.

  1. Step 50

    50

    #F8F5F1

    oklch(97.1% 0.006 75.4)

  2. Step 100

    100

    #EFE9DF

    oklch(93.6% 0.015 80.7)

  3. Step 200

    200

    #E3D7C5

    oklch(88.4% 0.028 78.2)

  4. Step 300

    300

    #D2BE9D

    oklch(81% 0.05 80.2)

  5. Step 400

    400

    #BB9B66

    oklch(70.6% 0.08 79.5)

  6. Step 500

    500

    #AA823A

    oklch(63.1% 0.102 79.7)

  7. Step 600

    600

    #956B10

    oklch(55.7% 0.11 80)

  8. Step 700

    700

    #7F5900

    oklch(49.2% 0.102 79.8)

  9. Step 800

    800

    #674907

    oklch(42.7% 0.085 80.4)

  10. Step 900

    900

    #543D12

    oklch(37.7% 0.066 79.6)

  11. Step 950

    950 (this color)

    #281B04

    oklch(23.3% 0.042 79.5)

Export this scale for Tailwind in the Tailwind colors tool

#281B04 with color blindness

Simulated with the Machado et al. (2009) model. ΔE is how far the color moves: below about 0.02 you would not notice a change.

VisionSeen asShift (ΔE)
Protanopia (no red cones)#201B020.018
Deuteranopia (no green cones)#231F050.016
Tritanopia (no blue cones)#2C17160.037
Achromatopsia (no color)#1D1D1D0.042

Harmonies

Hue rotations in OKLCH that keep this color's lightness and chroma.

Complementary

The opposite hue (180°).

  • #281B04

    #281B04

    oklch(23.3% 0.042 79.5)

  • #111E31

    #111E31

    oklch(23.4% 0.041 257.8)

Open the complementary palette in the generator

Analogous

Neighbouring hues, 30° either side.

  • #281B04

    #281B04

    oklch(23.3% 0.042 79.5)

  • #2D170A

    #2D170A

    oklch(23.2% 0.042 50.1)

  • #1F1F05

    #1F1F05

    oklch(23.2% 0.042 109.3)

Open the analogous palette in the generator

Split complementary

The two hues beside the complement (150° and 210°).

  • #281B04

    #281B04

    oklch(23.3% 0.042 79.5)

  • #03212D

    #03212D

    oklch(23.2% 0.042 228.6)

  • #1D1A30

    #1D1A30

    oklch(23.3% 0.042 289)

Open the split complementary palette in the generator

Triadic

Three hues spaced 120° apart.

  • #281B04

    #281B04

    oklch(23.3% 0.042 79.5)

  • #002325

    #002325

    oklch(23.3% 0.04 200.4)

  • #26172A

    #26172A

    oklch(23.3% 0.041 319)

Open the triadic palette in the generator

Square

Four hues spaced 90° apart.

  • #281B04

    #281B04

    oklch(23.3% 0.042 79.5)

  • #04241A

    #04241A

    oklch(23.4% 0.042 168.4)

  • #111E31

    #111E31

    oklch(23.4% 0.041 257.8)

  • #2C1521

    #2C1521

    oklch(23.3% 0.042 348.3)

Open the square palette in the generator

Palettes with this color

Curated palettes that contain a color within ΔE 0.04 (OKLab) of #281B04, closest first.

Similar named colors

The eight closest entries in our named color list, with their ΔE distance.

Use #281B04 in your product

Turn it into light and dark UI roles checked for contrast, then export to Tailwind v4, shadcn/ui, CSS or design tokens.