#551B2F

Closest named color: Burgundy (#610023). oklch(31.9% 0.088 2.1), rgb(85, 27, 47).

Aa

White text reads best on this color (13.25:1).

About this color

#551B2F is a dark, moderately saturated red. In OKLCH its lightness is 32%, its chroma 0.088 and its hue 2°. Its hue sits on the warm side of the wheel. The nearest named color is Burgundy (#610023), ΔE 0.040 away. White text reads best on it, at 13.25:1.

Hue familyReds
Lightnessdark (32%)
Chromamoderately saturated (0.088)
Temperaturewarm
Nearest nameBurgundy (#610023)
Black text1.58:1
White text13.25:1

Values

HEX#551B2F
RGBrgb(85, 27, 47)
HSLhsl(339, 52%, 22%)
OKLCHoklch(31.9% 0.088 2.1)

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 #551B2F 13.25:1 AAA Lc -102.4 Preferred for body text
Black text on #551B2F 1.58:1 Fails Lc 0.0 Not readable
#551B2F text on white 13.25:1 AAA Lc 99.1 Preferred for body text
#551B2F text on black 1.58:1 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 950.

  1. Step 50

    50

    #FEF2F5

    oklch(97.1% 0.013 0.3)

  2. Step 100

    100

    #FDE2E8

    oklch(93.6% 0.031 2.6)

  3. Step 200

    200

    #FBCAD6

    oklch(88.5% 0.057 2)

  4. Step 300

    300

    #FAA4BB

    oklch(81% 0.105 2.3)

  5. Step 400

    400

    #F26E98

    oklch(70.8% 0.167 2.3)

  6. Step 500

    500

    #E93B7F

    oklch(63.2% 0.214 2.2)

  7. Step 600

    600

    #D10069

    oklch(55.6% 0.224 2)

  8. Step 700

    700

    #B10058

    oklch(49.1% 0.198 2)

  9. Step 800

    800

    #920047

    oklch(42.6% 0.172 2.2)

  10. Step 900

    900

    #770F3C

    oklch(37.6% 0.14 1.7)

  11. Step 950

    950 (this color)

    #551B2F

    oklch(31.9% 0.088 2.1)

Export this scale for Tailwind in the Tailwind colors tool

#551B2F 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)#2629300.098
Deuteranopia (no green cones)#36342E0.089
Tritanopia (no blue cones)#5C15230.024
Achromatopsia (no color)#3030300.089

Harmonies

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

Complementary

The opposite hue (180°).

  • #551B2F

    #551B2F

    oklch(31.9% 0.088 2.1)

  • #003C35

    #003C35

    oklch(32% 0.057 182.2)

Open the complementary palette in the generator

Analogous

Neighbouring hues, 30° either side.

  • #551B2F

    #551B2F

    oklch(31.9% 0.088 2.1)

  • #4C1F46

    #4C1F46

    oklch(32.1% 0.088 332.8)

  • #571D13

    #571D13

    oklch(31.9% 0.088 32)

Open the analogous palette in the generator

Split complementary

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

  • #551B2F

    #551B2F

    oklch(31.9% 0.088 2.1)

  • #003E1C

    #003E1C

    oklch(31.9% 0.083 152.3)

  • #003A43

    #003A43

    oklch(32% 0.056 211.6)

Open the split complementary palette in the generator

Triadic

Three hues spaced 120° apart.

  • #551B2F

    #551B2F

    oklch(31.9% 0.088 2.1)

  • #2C3800

    #2C3800

    oklch(31.8% 0.077 122)

  • #003656

    #003656

    oklch(31.9% 0.077 242.5)

Open the triadic palette in the generator

Square

Four hues spaced 90° apart.

  • #551B2F

    #551B2F

    oklch(31.9% 0.088 2.1)

  • #3F3100

    #3F3100

    oklch(32% 0.065 91.4)

  • #003C35

    #003C35

    oklch(32% 0.057 182.2)

  • #242E5F

    #242E5F

    oklch(32.1% 0.087 271.9)

Open the square palette in the generator

Palettes with this color

Curated palettes that contain a color within ΔE 0.04 (OKLab) of #551B2F, closest first.

Similar named colors

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

Use #551B2F 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.