#A51F56

Closest named color: Violet Red (#A50055). oklch(48.1% 0.172 2.2), rgb(165, 31, 86).

Aa

White text reads best on this color (7.16:1).

About this color

#A51F56 is a medium-dark, vivid red. In OKLCH its lightness is 48%, its chroma 0.172 and its hue 2°. Its hue sits on the warm side of the wheel. The nearest named color is Violet Red (#A50055), ΔE 0.023 away. White text reads best on it, at 7.16:1.

Hue familyReds
Lightnessmedium-dark (48%)
Chromavivid (0.172)
Temperaturewarm
Nearest nameViolet Red (#A50055)
Black text2.93:1
White text7.16:1

Values

HEX#A51F56
RGBrgb(165, 31, 86)
HSLhsl(335, 68%, 38%)
OKLCHoklch(48.1% 0.172 2.2)

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 #A51F56 7.16:1 AAA Lc -88.4 Fine for body text
Black text on #A51F56 2.93:1 Fails Lc 20.6 Dividers and decoration only
#A51F56 text on white 7.16:1 AAA Lc 83.4 Fine for body text
#A51F56 text on black 2.93:1 Fails Lc -18.6 Dividers and decoration only

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 700.

  1. Step 50

    50

    #FCF2F5

    oklch(97% 0.011 357)

  2. Step 100

    100

    #F9E4E8

    oklch(93.7% 0.024 4.5)

  3. Step 200

    200

    #F5CDD6

    oklch(88.5% 0.046 2.9)

  4. Step 300

    300

    #EFAABC

    oklch(80.8% 0.084 2)

  5. Step 400

    400

    #E47B9A

    oklch(70.8% 0.133 2.2)

  6. Step 500

    500

    #D85481

    oklch(63.1% 0.17 2.1)

  7. Step 600

    600

    #C4326A

    oklch(55.6% 0.186 2.4)

  8. Step 700

    700 (this color)

    #A51F56

    oklch(48.1% 0.172 2.2)

  9. Step 800

    800

    #892049

    oklch(42.8% 0.143 2)

  10. Step 900

    900

    #6E213D

    oklch(37.6% 0.112 1.8)

  11. Step 950

    950

    #411524

    oklch(27.1% 0.07 1.7)

Export this scale for Tailwind in the Tailwind colors tool

#A51F56 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)#4147570.195
Deuteranopia (no green cones)#6561530.175
Tritanopia (no blue cones)#B400380.050
Achromatopsia (no color)#5858580.174

Harmonies

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

Complementary

The opposite hue (180°).

  • #A51F56

    #A51F56

    oklch(48.1% 0.172 2.2)

  • #006D62

    #006D62

    oklch(48% 0.086 182.9)

Open the complementary palette in the generator

Analogous

Neighbouring hues, 30° either side.

  • #A51F56

    #A51F56

    oklch(48.1% 0.172 2.2)

  • #922C88

    #922C88

    oklch(48.2% 0.172 332.1)

  • #AA240C

    #AA240C

    oklch(48.2% 0.173 32.1)

Open the analogous palette in the generator

Split complementary

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

  • #A51F56

    #A51F56

    oklch(48.1% 0.172 2.2)

  • #007138

    #007138

    oklch(48.1% 0.126 152.2)

  • #006A7A

    #006A7A

    oklch(48.2% 0.084 212.7)

Open the split complementary palette in the generator

Triadic

Three hues spaced 120° apart.

  • #A51F56

    #A51F56

    oklch(48.1% 0.172 2.2)

  • #536800

    #536800

    oklch(48.3% 0.118 122.4)

  • #006498

    #006498

    oklch(48.2% 0.114 241.7)

Open the triadic palette in the generator

Square

Four hues spaced 90° apart.

  • #A51F56

    #A51F56

    oklch(48.1% 0.172 2.2)

  • #725B00

    #725B00

    oklch(48.1% 0.098 91.6)

  • #006D62

    #006D62

    oklch(48% 0.086 182.9)

  • #404FBD

    #404FBD

    oklch(48.1% 0.172 272.3)

Open the square palette in the generator

Palettes with this color

Curated palettes that contain a color within ΔE 0.04 (OKLab) of #A51F56, closest first.

Similar named colors

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

Use #A51F56 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.