#3F102C

Closest named color: Aubergine (#3D0734). oklch(26.3% 0.081 347.4), rgb(63, 16, 44).

Aa

White text reads best on this color (15.88:1).

About this color

#3F102C is a dark, moderately saturated red. In OKLCH its lightness is 26%, its chroma 0.081 and its hue 347°. Its hue sits on the warm side of the wheel. The nearest named color is Aubergine (#3D0734), ΔE 0.027 away. White text reads best on it, at 15.88:1.

Hue familyReds
Lightnessdark (26%)
Chromamoderately saturated (0.081)
Temperaturewarm
Nearest nameAubergine (#3D0734)
Black text1.32:1
White text15.88:1

Values

HEX#3F102C
RGBrgb(63, 16, 44)
HSLhsl(324, 59%, 15%)
OKLCHoklch(26.3% 0.081 347.4)

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 #3F102C 15.88:1 AAA Lc -105.1 Preferred for body text
Black text on #3F102C 1.32:1 Fails Lc 0.0 Not readable
#3F102C text on white 15.88:1 AAA Lc 102.4 Preferred for body text
#3F102C text on black 1.32:1 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

    #FDF2F7

    oklch(97.1% 0.013 347.9)

  2. Step 100

    100

    #F9E3ED

    oklch(93.6% 0.027 348.3)

  3. Step 200

    200

    #F5CCE0

    oklch(88.6% 0.053 347.3)

  4. Step 300

    300

    #EFA7CC

    oklch(80.8% 0.096 347.3)

  5. Step 400

    400

    #E475B2

    oklch(70.7% 0.154 347.6)

  6. Step 500

    500

    #D84B9F

    oklch(63.1% 0.195 347.4)

  7. Step 600

    600

    #C4238A

    oklch(55.7% 0.213 347.6)

  8. Step 700

    700

    #A81075

    oklch(49% 0.198 347.3)

  9. Step 800

    800

    #89145F

    oklch(42.7% 0.165 347.6)

  10. Step 900

    900

    #6E1B4E

    oklch(37.7% 0.128 347.3)

  11. Step 950

    950 (this color)

    #3F102C

    oklch(26.3% 0.081 347.4)

Export this scale for Tailwind in the Tailwind colors tool

#3F102C 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)#161D2D0.089
Deuteranopia (no green cones)#23252B0.079
Tritanopia (no blue cones)#440F1C0.032
Achromatopsia (no color)#2222220.082

Harmonies

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

Complementary

The opposite hue (180°).

  • #3F102C

    #3F102C

    oklch(26.3% 0.081 347.4)

  • #002D1F

    #002D1F

    oklch(26.4% 0.054 166.6)

Open the complementary palette in the generator

Analogous

Neighbouring hues, 30° either side.

  • #3F102C

    #3F102C

    oklch(26.3% 0.081 347.4)

  • #34153E

    #34153E

    oklch(26.3% 0.081 317.2)

  • #440F16

    #440F16

    oklch(26.4% 0.081 17.2)

Open the analogous palette in the generator

Split complementary

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

  • #3F102C

    #3F102C

    oklch(26.3% 0.081 347.4)

  • #0E2D00

    #0E2D00

    oklch(26.3% 0.08 137.4)

  • #002B2C

    #002B2C

    oklch(26.2% 0.045 197.2)

Open the split complementary palette in the generator

Triadic

Three hues spaced 120° apart.

  • #3F102C

    #3F102C

    oklch(26.3% 0.081 347.4)

  • #282600

    #282600

    oklch(26.2% 0.056 106.7)

  • #002938

    #002938

    oklch(26.2% 0.051 228.1)

Open the triadic palette in the generator

Square

Four hues spaced 90° apart.

  • #3F102C

    #3F102C

    oklch(26.3% 0.081 347.4)

  • #332100

    #332100

    oklch(26.4% 0.055 78.7)

  • #002D1F

    #002D1F

    oklch(26.4% 0.054 166.6)

  • #06244B

    #06244B

    oklch(26.4% 0.08 256.7)

Open the square palette in the generator

Palettes with this color

Curated palettes that contain a color within ΔE 0.04 (OKLab) of #3F102C, closest first.

Similar named colors

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

Use #3F102C 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.