#641C35

Closest named color: Merlot (#730039). oklch(35% 0.105 3.1), rgb(100, 28, 53).

Aa

White text reads best on this color (11.93:1).

About this color

#641C35 is a dark, moderately saturated red. In OKLCH its lightness is 35%, its chroma 0.105 and its hue 3°. Its hue sits on the warm side of the wheel. The nearest named color is Merlot (#730039), ΔE 0.042 away. White text reads best on it, at 11.93:1.

Hue familyReds
Lightnessdark (35%)
Chromamoderately saturated (0.105)
Temperaturewarm
Nearest nameMerlot (#730039)
Black text1.75:1
White text11.93:1

Values

HEX#641C35
RGBrgb(100, 28, 53)
HSLhsl(339, 56%, 25%)
OKLCHoklch(35% 0.105 3.1)

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 #641C35 11.93:1 AAA Lc -100.2 Preferred for body text
Black text on #641C35 1.75:1 Fails Lc 7.3 Not readable
#641C35 text on white 11.93:1 AAA Lc 96.5 Preferred for body text
#641C35 text on black 1.75:1 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 900.

  1. Step 50

    50

    #FCF3F5

    oklch(97.2% 0.01 2)

  2. Step 100

    100

    #F8E4E8

    oklch(93.6% 0.022 3.8)

  3. Step 200

    200

    #F4CED6

    oklch(88.6% 0.044 3.8)

  4. Step 300

    300

    #EDACBB

    oklch(80.9% 0.078 3.7)

  5. Step 400

    400

    #E17D99

    oklch(70.7% 0.127 2.9)

  6. Step 500

    500

    #D55880

    oklch(63.1% 0.161 2.9)

  7. Step 600

    600

    #C03869

    oklch(55.5% 0.176 3)

  8. Step 700

    700

    #A62958

    oklch(49.2% 0.164 2.9)

  9. Step 800

    800

    #872448

    oklch(42.8% 0.136 2.9)

  10. Step 900

    900 (this color)

    #641C35

    oklch(35% 0.105 3.1)

  11. Step 950

    950

    #401623

    oklch(27% 0.067 3.3)

Export this scale for Tailwind in the Tailwind colors tool

#641C35 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)#2B2E360.118
Deuteranopia (no green cones)#3E3C330.108
Tritanopia (no blue cones)#6D12260.029
Achromatopsia (no color)#3737370.106

Harmonies

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

Complementary

The opposite hue (180°).

  • #641C35

    #641C35

    oklch(35% 0.105 3.1)

  • #00453E

    #00453E

    oklch(35.1% 0.062 183.5)

Open the complementary palette in the generator

Analogous

Neighbouring hues, 30° either side.

  • #641C35

    #641C35

    oklch(35% 0.105 3.1)

  • #592151

    #592151

    oklch(35% 0.105 333.5)

  • #661F11

    #661F11

    oklch(34.9% 0.105 33.1)

Open the analogous palette in the generator

Split complementary

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

  • #641C35

    #641C35

    oklch(35% 0.105 3.1)

  • #004722

    #004722

    oklch(34.9% 0.09 152.9)

  • #00424D

    #00424D

    oklch(34.8% 0.061 213.2)

Open the split complementary palette in the generator

Triadic

Three hues spaced 120° apart.

  • #641C35

    #641C35

    oklch(35% 0.105 3.1)

  • #324100

    #324100

    oklch(34.9% 0.086 123.1)

  • #003E63

    #003E63

    oklch(35% 0.085 243.4)

Open the triadic palette in the generator

Square

Four hues spaced 90° apart.

  • #641C35

    #641C35

    oklch(35% 0.105 3.1)

  • #473900

    #473900

    oklch(34.9% 0.072 93.4)

  • #00453E

    #00453E

    oklch(35.1% 0.062 183.5)

  • #2A3370

    #2A3370

    oklch(34.9% 0.105 273.4)

Open the square palette in the generator

Palettes with this color

Curated palettes that contain a color within ΔE 0.04 (OKLab) of #641C35, closest first.

Similar named colors

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

Use #641C35 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.