#421D2F

Closest named color: Aubergine (#3D0734). oklch(29% 0.062 351.2), rgb(66, 29, 47).

Aa

White text reads best on this color (14.49:1).

About this color

#421D2F is a dark, muted red. In OKLCH its lightness is 29%, its chroma 0.062 and its hue 351°. Its hue sits on the warm side of the wheel. The nearest named color is Aubergine (#3D0734), ΔE 0.056 away. White text reads best on it, at 14.49:1.

Hue familyReds
Lightnessdark (29%)
Chromamuted (0.062)
Temperaturewarm
Nearest nameAubergine (#3D0734)
Black text1.44:1
White text14.49:1

Values

HEX#421D2F
RGBrgb(66, 29, 47)
HSLhsl(331, 39%, 19%)
OKLCHoklch(29% 0.062 351.2)

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 #421D2F 14.49:1 AAA Lc -104.0 Preferred for body text
Black text on #421D2F 1.44:1 Fails Lc 0.0 Not readable
#421D2F text on white 14.49:1 AAA Lc 101.0 Preferred for body text
#421D2F text on black 1.44:1 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

    #FBF3F6

    oklch(97.1% 0.009 352.4)

  2. Step 100

    100

    #F6E4EB

    oklch(93.5% 0.022 351.9)

  3. Step 200

    200

    #F0CFDC

    oklch(88.6% 0.041 352.2)

  4. Step 300

    300

    #E7ADC6

    oklch(80.8% 0.075 351.3)

  5. Step 400

    400

    #D881A9

    oklch(70.7% 0.117 351.5)

  6. Step 500

    500

    #CB5E94

    oklch(63.1% 0.151 351.3)

  7. Step 600

    600

    #B6417F

    oklch(55.6% 0.164 350.9)

  8. Step 700

    700

    #9C326B

    oklch(49% 0.152 351)

  9. Step 800

    800

    #7F2B57

    oklch(42.7% 0.126 351.3)

  10. Step 900

    900

    #672848

    oklch(37.8% 0.098 351.2)

  11. Step 950

    950 (this color)

    #421D2F

    oklch(29% 0.062 351.2)

Export this scale for Tailwind in the Tailwind colors tool

#421D2F 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)#2125300.068
Deuteranopia (no green cones)#2B2C2E0.062
Tritanopia (no blue cones)#471C240.022
Achromatopsia (no color)#2929290.063

Harmonies

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

Complementary

The opposite hue (180°).

  • #421D2F

    #421D2F

    oklch(29% 0.062 351.2)

  • #003428

    #003428

    oklch(29% 0.056 172.1)

Open the complementary palette in the generator

Analogous

Neighbouring hues, 30° either side.

  • #421D2F

    #421D2F

    oklch(29% 0.062 351.2)

  • #39203E

    #39203E

    oklch(29% 0.062 320.8)

  • #461D1D

    #461D1D

    oklch(29.1% 0.063 21.8)

Open the analogous palette in the generator

Split complementary

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

  • #421D2F

    #421D2F

    oklch(29% 0.062 351.2)

  • #183314

    #183314

    oklch(29.1% 0.063 141.2)

  • #003235

    #003235

    oklch(28.9% 0.049 201.2)

Open the split complementary palette in the generator

Triadic

Three hues spaced 120° apart.

  • #421D2F

    #421D2F

    oklch(29% 0.062 351.2)

  • #2D2E01

    #2D2E01

    oklch(29.1% 0.063 111)

  • #003043

    #003043

    oklch(29% 0.059 231.1)

Open the triadic palette in the generator

Square

Four hues spaced 90° apart.

  • #421D2F

    #421D2F

    oklch(29% 0.062 351.2)

  • #3A2800

    #3A2800

    oklch(29.1% 0.06 82.4)

  • #003428

    #003428

    oklch(29% 0.056 172.1)

  • #192B4A

    #192B4A

    oklch(29.1% 0.062 260.6)

Open the square palette in the generator

Palettes with this color

Curated palettes that contain a color within ΔE 0.04 (OKLab) of #421D2F, closest first.

Similar named colors

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

Use #421D2F 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.