#6B213B

Closest named color: Merlot (#730039). oklch(37% 0.108 2.3), rgb(107, 33, 59).

Aa

White text reads best on this color (11.01:1).

About this color

#6B213B is a dark, moderately saturated red. In OKLCH its lightness is 37%, its chroma 0.108 and its hue 2°. Its hue sits on the warm side of the wheel. The nearest named color is Merlot (#730039), ΔE 0.040 away. White text reads best on it, at 11.01:1.

Hue familyReds
Lightnessdark (37%)
Chromamoderately saturated (0.108)
Temperaturewarm
Nearest nameMerlot (#730039)
Black text1.90:1
White text11.01:1

Values

HEX#6B213B
RGBrgb(107, 33, 59)
HSLhsl(339, 53%, 27%)
OKLCHoklch(37% 0.108 2.3)

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 #6B213B 11.01:1 AAA Lc -98.7 Preferred for body text
Black text on #6B213B 1.90:1 Fails Lc 9.2 Not readable
#6B213B text on white 11.01:1 AAA Lc 94.7 Preferred for body text
#6B213B text on black 1.90:1 Fails Lc -7.9 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

    #F4CDD6

    oklch(88.4% 0.045 2.5)

  4. Step 300

    300

    #EEABBC

    oklch(80.9% 0.081 2.4)

  5. Step 400

    400

    #E27C9A

    oklch(70.7% 0.13 2.1)

  6. Step 500

    500

    #D65681

    oklch(63% 0.165 2.1)

  7. Step 600

    600

    #C2366A

    oklch(55.7% 0.18 2.6)

  8. Step 700

    700

    #A72759

    oklch(49.2% 0.167 2.3)

  9. Step 800

    800

    #872349

    oklch(42.7% 0.138 2)

  10. Step 900

    900 (this color)

    #6B213B

    oklch(37% 0.108 2.3)

  11. Step 950

    950

    #401624

    oklch(27% 0.067 1.8)

Export this scale for Tailwind in the Tailwind colors tool

#6B213B 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)#30333C0.120
Deuteranopia (no green cones)#4441390.108
Tritanopia (no blue cones)#74182B0.030
Achromatopsia (no color)#3C3C3C0.109

Harmonies

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

Complementary

The opposite hue (180°).

  • #6B213B

    #6B213B

    oklch(37% 0.108 2.3)

  • #004B43

    #004B43

    oklch(37.1% 0.066 182.8)

Open the complementary palette in the generator

Analogous

Neighbouring hues, 30° either side.

  • #6B213B

    #6B213B

    oklch(37% 0.108 2.3)

  • #5F2658

    #5F2658

    oklch(37% 0.107 332.5)

  • #6E2417

    #6E2417

    oklch(37.2% 0.108 32.2)

Open the analogous palette in the generator

Split complementary

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

  • #6B213B

    #6B213B

    oklch(37% 0.108 2.3)

  • #004E25

    #004E25

    oklch(37.1% 0.097 152.4)

  • #004954

    #004954

    oklch(37.2% 0.065 211.8)

Open the split complementary palette in the generator

Triadic

Three hues spaced 120° apart.

  • #6B213B

    #6B213B

    oklch(37% 0.108 2.3)

  • #384700

    #384700

    oklch(37.1% 0.09 122.3)

  • #00446A

    #00446A

    oklch(37.1% 0.088 242.1)

Open the triadic palette in the generator

Square

Four hues spaced 90° apart.

  • #6B213B

    #6B213B

    oklch(37% 0.108 2.3)

  • #4E3E00

    #4E3E00

    oklch(37% 0.076 92.3)

  • #004B43

    #004B43

    oklch(37.1% 0.066 182.8)

  • #2D3978

    #2D3978

    oklch(37.1% 0.108 272)

Open the square palette in the generator

Palettes with this color

Curated palettes that contain a color within ΔE 0.04 (OKLab) of #6B213B, closest first.

Similar named colors

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

Use #6B213B 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.