#661C24

Closest named color: Claret (#680018). oklch(34.9% 0.105 18.5), rgb(102, 28, 36).

Aa

White text reads best on this color (11.95:1).

About this color

#661C24 is a dark, moderately saturated red. In OKLCH its lightness is 35%, its chroma 0.105 and its hue 18°. Its hue sits on the warm side of the wheel. The nearest named color is Claret (#680018), ΔE 0.033 away. White text reads best on it, at 11.95:1.

Hue familyReds
Lightnessdark (35%)
Chromamoderately saturated (0.105)
Temperaturewarm
Nearest nameClaret (#680018)
Black text1.75:1
White text11.95:1

Values

HEX#661C24
RGBrgb(102, 28, 36)
HSLhsl(354, 57%, 25%)
OKLCHoklch(34.9% 0.105 18.5)

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 #661C24 11.95:1 AAA Lc -100.2 Preferred for body text
Black text on #661C24 1.75:1 Fails Lc 7.4 Not readable
#661C24 text on white 11.95:1 AAA Lc 96.5 Preferred for body text
#661C24 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

    #FDF3F3

    oklch(97.2% 0.011 17.3)

  2. Step 100

    100

    #F9E4E4

    oklch(93.6% 0.023 17.6)

  3. Step 200

    200

    #F5CECE

    oklch(88.5% 0.044 18)

  4. Step 300

    300

    #F0ACAD

    oklch(80.9% 0.08 18)

  5. Step 400

    400

    #E47E82

    oklch(70.6% 0.126 18.3)

  6. Step 500

    500

    #D95963

    oklch(63.1% 0.161 18.3)

  7. Step 600

    600

    #C5394A

    oklch(55.7% 0.176 18.3)

  8. Step 700

    700

    #AA293B

    oklch(49.1% 0.164 18.3)

  9. Step 800

    800

    #8A2531

    oklch(42.8% 0.135 18.5)

  10. Step 900

    900 (this color)

    #661C24

    oklch(34.9% 0.105 18.5)

  11. Step 950

    950

    #411619

    oklch(26.9% 0.067 18.6)

Export this scale for Tailwind in the Tailwind colors tool

#661C24 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)#2F2D240.116
Deuteranopia (no green cones)#423C220.105
Tritanopia (no blue cones)#700A1F0.027
Achromatopsia (no color)#3737370.106

Harmonies

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

Complementary

The opposite hue (180°).

  • #661C24

    #661C24

    oklch(34.9% 0.105 18.5)

  • #004346

    #004346

    oklch(34.8% 0.059 199.9)

Open the complementary palette in the generator

Analogous

Neighbouring hues, 30° either side.

  • #661C24

    #661C24

    oklch(34.9% 0.105 18.5)

  • #5F1D43

    #5F1D43

    oklch(34.8% 0.106 348.4)

  • #602700

    #602700

    oklch(34.9% 0.095 48.1)

Open the analogous palette in the generator

Split complementary

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

  • #661C24

    #661C24

    oklch(34.9% 0.105 18.5)

  • #004633

    #004633

    oklch(35% 0.071 167.6)

  • #004056

    #004056

    oklch(34.7% 0.068 229)

Open the split complementary palette in the generator

Triadic

Three hues spaced 120° apart.

  • #661C24

    #661C24

    oklch(34.9% 0.105 18.5)

  • #184603

    #184603

    oklch(34.8% 0.106 138.5)

  • #123870

    #123870

    oklch(34.8% 0.106 258.5)

Open the triadic palette in the generator

Square

Four hues spaced 90° apart.

  • #661C24

    #661C24

    oklch(34.9% 0.105 18.5)

  • #3E3D00

    #3E3D00

    oklch(35% 0.076 108.7)

  • #004346

    #004346

    oklch(34.8% 0.059 199.9)

  • #3A2E6D

    #3A2E6D

    oklch(35% 0.105 288.5)

Open the square palette in the generator

Palettes with this color

Curated palettes that contain a color within ΔE 0.04 (OKLab) of #661C24, closest first.

Similar named colors

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

Use #661C24 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.