#661635

Closest named color: Merlot (#730039). oklch(34.7% 0.115 2), rgb(102, 22, 53).

Aa

White text reads best on this color (12.13:1).

About this color

#661635 is a dark, moderately saturated red. In OKLCH its lightness is 35%, its chroma 0.115 and its hue 2°. Its hue sits on the warm side of the wheel. The nearest named color is Merlot (#730039), ΔE 0.033 away. White text reads best on it, at 12.13:1.

Hue familyReds
Lightnessdark (35%)
Chromamoderately saturated (0.115)
Temperaturewarm
Nearest nameMerlot (#730039)
Black text1.73:1
White text12.13:1

Values

HEX#661635
RGBrgb(102, 22, 53)
HSLhsl(337, 65%, 24%)
OKLCHoklch(34.7% 0.115 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 #661635 12.13:1 AAA Lc -100.3 Preferred for body text
Black text on #661635 1.73:1 Fails Lc 0.0 Not readable
#661635 text on white 12.13:1 AAA Lc 96.7 Preferred for body text
#661635 text on black 1.73:1 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

    #FDF2F5

    oklch(97.1% 0.012 358.8)

  2. Step 100

    100

    #F9E3E8

    oklch(93.5% 0.025 2.1)

  3. Step 200

    200

    #F6CDD6

    oklch(88.6% 0.048 3.3)

  4. Step 300

    300

    #F0A9BC

    oklch(80.8% 0.087 1.7)

  5. Step 400

    400

    #E6799A

    oklch(70.8% 0.139 2)

  6. Step 500

    500

    #DB5181

    oklch(63.2% 0.177 2.1)

  7. Step 600

    600

    #C62E6A

    oklch(55.6% 0.192 2.3)

  8. Step 700

    700

    #AA1E59

    oklch(49.1% 0.178 1.8)

  9. Step 800

    800

    #8A1D49

    oklch(42.7% 0.147 1.7)

  10. Step 900

    900 (this color)

    #661635

    oklch(34.7% 0.115 2)

  11. Step 950

    950

    #421424

    oklch(27.1% 0.073 1.7)

Export this scale for Tailwind in the Tailwind colors tool

#661635 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)#282C360.130
Deuteranopia (no green cones)#3E3B330.116
Tritanopia (no blue cones)#6F08230.033
Achromatopsia (no color)#3636360.116

Harmonies

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

Complementary

The opposite hue (180°).

  • #661635

    #661635

    oklch(34.7% 0.115 2)

  • #00443C

    #00443C

    oklch(34.7% 0.062 181.8)

Open the complementary palette in the generator

Analogous

Neighbouring hues, 30° either side.

  • #661635

    #661635

    oklch(34.7% 0.115 2)

  • #5A1C54

    #5A1C54

    oklch(34.7% 0.116 331.8)

  • #69190C

    #69190C

    oklch(34.7% 0.115 31.9)

Open the analogous palette in the generator

Split complementary

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

  • #661635

    #661635

    oklch(34.7% 0.115 2)

  • #004720

    #004720

    oklch(34.8% 0.092 151.8)

  • #00424C

    #00424C

    oklch(34.8% 0.061 211.6)

Open the split complementary palette in the generator

Triadic

Three hues spaced 120° apart.

  • #661635

    #661635

    oklch(34.7% 0.115 2)

  • #334000

    #334000

    oklch(34.7% 0.084 121.7)

  • #003E60

    #003E60

    oklch(34.8% 0.081 241.2)

Open the triadic palette in the generator

Square

Four hues spaced 90° apart.

  • #661635

    #661635

    oklch(34.7% 0.115 2)

  • #473800

    #473800

    oklch(34.7% 0.071 92)

  • #00443C

    #00443C

    oklch(34.7% 0.062 181.8)

  • #263174

    #263174

    oklch(34.5% 0.115 271.9)

Open the square palette in the generator

Palettes with this color

Curated palettes that contain a color within ΔE 0.04 (OKLab) of #661635, closest first.

Similar named colors

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

Use #661635 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.