#42271D

Closest named color: Chocolate Brown (#411900). oklch(30.4% 0.045 41), rgb(66, 39, 29).

Aa

White text reads best on this color (13.63:1).

About this color

#42271D is a dark, muted brown. In OKLCH its lightness is 30%, its chroma 0.045 and its hue 41°. Its hue sits on the warm side of the wheel. The nearest named color is Chocolate Brown (#411900), ΔE 0.045 away. White text reads best on it, at 13.63:1.

Hue familyBrowns
Lightnessdark (30%)
Chromamuted (0.045)
Temperaturewarm
Nearest nameChocolate Brown (#411900)
Black text1.53:1
White text13.63:1

Values

HEX#42271D
RGBrgb(66, 39, 29)
HSLhsl(16, 39%, 19%)
OKLCHoklch(30.4% 0.045 41)

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 #42271D 13.63:1 AAA Lc -103.2 Preferred for body text
Black text on #42271D 1.53:1 Fails Lc 0.0 Not readable
#42271D text on white 13.63:1 AAA Lc 100.0 Preferred for body text
#42271D text on black 1.53:1 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

    #FAF4F2

    oklch(97.1% 0.007 39.5)

  2. Step 100

    100

    #F3E7E2

    oklch(93.6% 0.015 44.2)

  3. Step 200

    200

    #EBD3CB

    oklch(88.4% 0.029 39.3)

  4. Step 300

    300

    #E0B6A7

    oklch(81% 0.053 40.6)

  5. Step 400

    400

    #CE8F78

    oklch(70.7% 0.084 40.9)

  6. Step 500

    500

    #C07255

    oklch(63.1% 0.107 41)

  7. Step 600

    600

    #AC5939

    oklch(55.7% 0.118 41.2)

  8. Step 700

    700

    #93482C

    oklch(49% 0.109 40.6)

  9. Step 800

    800

    #773C25

    oklch(42.7% 0.09 41.4)

  10. Step 900

    900

    #613423

    oklch(37.8% 0.071 41.2)

  11. Step 950

    950 (this color)

    #42271D

    oklch(30.4% 0.045 41)

Export this scale for Tailwind in the Tailwind colors tool

#42271D 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)#2E2A1C0.041
Deuteranopia (no green cones)#34301D0.038
Tritanopia (no blue cones)#4823240.022
Achromatopsia (no color)#2E2E2E0.045

Harmonies

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

Complementary

The opposite hue (180°).

  • #42271D

    #42271D

    oklch(30.4% 0.045 41)

  • #10343F

    #10343F

    oklch(30.5% 0.045 221.5)

Open the complementary palette in the generator

Analogous

Neighbouring hues, 30° either side.

  • #42271D

    #42271D

    oklch(30.4% 0.045 41)

  • #422529

    #422529

    oklch(30.3% 0.044 11.1)

  • #3D2B14

    #3D2B14

    oklch(30.5% 0.045 71.5)

Open the analogous palette in the generator

Split complementary

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

  • #42271D

    #42271D

    oklch(30.4% 0.045 41)

  • #0D3634

    #0D3634

    oklch(30.4% 0.045 190.4)

  • #1D3045

    #1D3045

    oklch(30.3% 0.046 251.8)

Open the split complementary palette in the generator

Triadic

Three hues spaced 120° apart.

  • #42271D

    #42271D

    oklch(30.4% 0.045 41)

  • #183627

    #183627

    oklch(30.4% 0.046 160.2)

  • #2B2C45

    #2B2C45

    oklch(30.4% 0.045 281.6)

Open the triadic palette in the generator

Square

Four hues spaced 90° apart.

  • #42271D

    #42271D

    oklch(30.4% 0.045 41)

  • #27341B

    #27341B

    oklch(30.6% 0.046 131.1)

  • #10343F

    #10343F

    oklch(30.5% 0.045 221.5)

  • #36283F

    #36283F

    oklch(30.3% 0.045 311.6)

Open the square palette in the generator

Palettes with this color

Curated palettes that contain a color within ΔE 0.04 (OKLab) of #42271D, closest first.

Similar named colors

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

Use #42271D 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.