#6C0018

Closest named color: Claret (#680018). oklch(33.6% 0.135 19.5), rgb(108, 0, 24).

Aa

White text reads best on this color (12.72:1).

About this color

#6C0018 is a dark, moderately saturated red. In OKLCH its lightness is 34%, its chroma 0.135 and its hue 19°. Its hue sits on the warm side of the wheel. The nearest named color is Claret (#680018), ΔE 0.009 away. White text reads best on it, at 12.72:1.

Hue familyReds
Lightnessdark (34%)
Chromamoderately saturated (0.135)
Temperaturewarm
Nearest nameClaret (#680018)
Black text1.65:1
White text12.72:1

Values

HEX#6C0018
RGBrgb(108, 0, 24)
HSLhsl(347, 100%, 21%)
OKLCHoklch(33.6% 0.135 19.5)

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 #6C0018 12.72:1 AAA Lc -100.3 Preferred for body text
Black text on #6C0018 1.65:1 Fails Lc 0.0 Not readable
#6C0018 text on white 12.72:1 AAA Lc 96.7 Preferred for body text
#6C0018 text on black 1.65:1 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

    #FFF2F2

    oklch(97.1% 0.014 17.4)

  2. Step 100

    100

    #FDE3E2

    oklch(93.7% 0.029 20.3)

  3. Step 200

    200

    #FCCBCA

    oklch(88.4% 0.056 19.6)

  4. Step 300

    300

    #FBA6A6

    oklch(80.9% 0.101 19.5)

  5. Step 400

    400

    #F57177

    oklch(70.8% 0.162 19.4)

  6. Step 500

    500

    #EC4054

    oklch(63.1% 0.207 19.3)

  7. Step 600

    600

    #D70039

    oklch(55.6% 0.223 19.6)

  8. Step 700

    700

    #B6002F

    oklch(49.1% 0.197 19.5)

  9. Step 800

    800

    #960025

    oklch(42.6% 0.171 19.5)

  10. Step 900

    900 (this color)

    #6C0018

    oklch(33.6% 0.135 19.5)

  11. Step 950

    950

    #480F15

    oklch(27.1% 0.086 19.3)

Export this scale for Tailwind in the Tailwind colors tool

#6C0018 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)#2825180.150
Deuteranopia (no green cones)#413A140.137
Tritanopia (no blue cones)#78000B0.031
Achromatopsia (no color)#3333330.136

Harmonies

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

Complementary

The opposite hue (180°).

  • #6C0018

    #6C0018

    oklch(33.6% 0.135 19.5)

  • #004042

    #004042

    oklch(33.7% 0.057 198.3)

Open the complementary palette in the generator

Analogous

Neighbouring hues, 30° either side.

  • #6C0018

    #6C0018

    oklch(33.6% 0.135 19.5)

  • #640541

    #640541

    oklch(33.5% 0.135 349.4)

  • #5A2600

    #5A2600

    oklch(33.7% 0.089 50)

Open the analogous palette in the generator

Split complementary

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

  • #6C0018

    #6C0018

    oklch(33.6% 0.135 19.5)

  • #004231

    #004231

    oklch(33.7% 0.067 169)

  • #003D52

    #003D52

    oklch(33.7% 0.066 228.8)

Open the split complementary palette in the generator

Triadic

Three hues spaced 120° apart.

  • #6C0018

    #6C0018

    oklch(33.6% 0.135 19.5)

  • #114300

    #114300

    oklch(33.6% 0.107 139.5)

  • #00317A

    #00317A

    oklch(33.6% 0.134 259.5)

Open the triadic palette in the generator

Square

Four hues spaced 90° apart.

  • #6C0018

    #6C0018

    oklch(33.6% 0.135 19.5)

  • #3A3A00

    #3A3A00

    oklch(33.7% 0.074 109.8)

  • #004042

    #004042

    oklch(33.7% 0.057 198.3)

  • #392276

    #392276

    oklch(33.6% 0.135 289.7)

Open the square palette in the generator

Palettes with this color

Curated palettes that contain a color within ΔE 0.04 (OKLab) of #6C0018, closest first.

Similar named colors

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

Use #6C0018 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.