#3F182A

Closest named color: Aubergine (#3D0734). oklch(27.4% 0.065 353.4), rgb(63, 24, 42).

Aa

White text reads best on this color (15.26:1).

About this color

#3F182A is a dark, muted red. In OKLCH its lightness is 27%, its chroma 0.065 and its hue 353°. Its hue sits on the warm side of the wheel. The nearest named color is Aubergine (#3D0734), ΔE 0.046 away. White text reads best on it, at 15.26:1.

Hue familyReds
Lightnessdark (27%)
Chromamuted (0.065)
Temperaturewarm
Nearest nameAubergine (#3D0734)
Black text1.37:1
White text15.26:1

Values

HEX#3F182A
RGBrgb(63, 24, 42)
HSLhsl(332, 45%, 17%)
OKLCHoklch(27.4% 0.065 353.4)

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 #3F182A 15.26:1 AAA Lc -104.7 Preferred for body text
Black text on #3F182A 1.37:1 Fails Lc 0.0 Not readable
#3F182A text on white 15.26:1 AAA Lc 101.9 Preferred for body text
#3F182A text on black 1.37:1 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

    #FCF3F6

    oklch(97.2% 0.01 354.9)

  2. Step 100

    100

    #F7E4EB

    oklch(93.6% 0.023 353.2)

  3. Step 200

    200

    #F1CEDB

    oklch(88.5% 0.043 353.6)

  4. Step 300

    300

    #E9ACC5

    oklch(80.8% 0.078 352.6)

  5. Step 400

    400

    #DC7EA7

    oklch(70.7% 0.125 353.2)

  6. Step 500

    500

    #CF5B91

    oklch(63.1% 0.157 353.4)

  7. Step 600

    600

    #BA3C7B

    oklch(55.5% 0.172 353.4)

  8. Step 700

    700

    #A02D68

    oklch(49.1% 0.16 353.2)

  9. Step 800

    800

    #822755

    oklch(42.7% 0.133 353.1)

  10. Step 900

    900

    #692646

    oklch(37.8% 0.103 353.4)

  11. Step 950

    950 (this color)

    #3F182A

    oklch(27.4% 0.065 353.4)

Export this scale for Tailwind in the Tailwind colors tool

#3F182A 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)#1D212B0.072
Deuteranopia (no green cones)#2828290.065
Tritanopia (no blue cones)#44161F0.022
Achromatopsia (no color)#2525250.066

Harmonies

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

Complementary

The opposite hue (180°).

  • #3F182A

    #3F182A

    oklch(27.4% 0.065 353.4)

  • #003025

    #003025

    oklch(27.6% 0.053 172.6)

Open the complementary palette in the generator

Analogous

Neighbouring hues, 30° either side.

  • #3F182A

    #3F182A

    oklch(27.4% 0.065 353.4)

  • #371B3A

    #371B3A

    oklch(27.5% 0.066 323.6)

  • #421818

    #421818

    oklch(27.4% 0.066 22.4)

Open the analogous palette in the generator

Split complementary

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

  • #3F182A

    #3F182A

    oklch(27.4% 0.065 353.4)

  • #112F10

    #112F10

    oklch(27.3% 0.065 143)

  • #002E32

    #002E32

    oklch(27.5% 0.047 203.9)

Open the split complementary palette in the generator

Triadic

Three hues spaced 120° apart.

  • #3F182A

    #3F182A

    oklch(27.4% 0.065 353.4)

  • #282A00

    #282A00

    oklch(27.4% 0.061 112.5)

  • #002C3F

    #002C3F

    oklch(27.6% 0.057 232.9)

Open the triadic palette in the generator

Square

Four hues spaced 90° apart.

  • #3F182A

    #3F182A

    oklch(27.4% 0.065 353.4)

  • #352400

    #352400

    oklch(27.4% 0.056 81.9)

  • #003025

    #003025

    oklch(27.6% 0.053 172.6)

  • #162647

    #162647

    oklch(27.4% 0.065 263.2)

Open the square palette in the generator

Palettes with this color

Curated palettes that contain a color within ΔE 0.04 (OKLab) of #3F182A, closest first.

Similar named colors

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

Use #3F182A 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.