#250506

Closest named color: Very Dark Brown (#1D0200). oklch(17.9% 0.056 22.4), rgb(37, 5, 6).

Aa

White text reads best on this color (19.03:1).

About this color

#250506 is a very dark, muted red. In OKLCH its lightness is 18%, its chroma 0.056 and its hue 22°. Its hue sits on the warm side of the wheel. The nearest named color is Very Dark Brown (#1D0200), ΔE 0.031 away. White text reads best on it, at 19.03:1.

Hue familyReds
Lightnessvery dark (18%)
Chromamuted (0.056)
Temperaturewarm
Nearest nameVery Dark Brown (#1D0200)
Black text1.10:1
White text19.03:1

Values

HEX#250506
RGBrgb(37, 5, 6)
HSLhsl(358, 76%, 8%)
OKLCHoklch(17.9% 0.056 22.4)

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 #250506 19.03:1 AAA Lc -107.2 Preferred for body text
Black text on #250506 1.10:1 Fails Lc 0.0 Not readable
#250506 text on white 19.03:1 AAA Lc 105.1 Preferred for body text
#250506 text on black 1.10:1 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

    #FBF3F3

    oklch(97% 0.009 17.3)

  2. Step 100

    100

    #F6E5E4

    oklch(93.5% 0.019 21.6)

  3. Step 200

    200

    #F1D0CE

    oklch(88.5% 0.037 22)

  4. Step 300

    300

    #E8B0AD

    oklch(80.8% 0.066 22.1)

  5. Step 400

    400

    #DB8682

    oklch(70.8% 0.105 23)

  6. Step 500

    500

    #CE6563

    oklch(63.1% 0.134 22.7)

  7. Step 600

    600

    #B9494A

    oklch(55.6% 0.145 22.6)

  8. Step 700

    700

    #9F393B

    oklch(49% 0.136 22.5)

  9. Step 800

    800

    #813031

    oklch(42.6% 0.112 22.4)

  10. Step 900

    900

    #682C2B

    oklch(37.7% 0.087 23.1)

  11. Step 950

    950 (this color)

    #250506

    oklch(17.9% 0.056 22.4)

Export this scale for Tailwind in the Tailwind colors tool

#250506 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)#0D0B060.060
Deuteranopia (no green cones)#1513050.057
Tritanopia (no blue cones)#2A01060.016
Achromatopsia (no color)#1010100.056

Harmonies

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

Complementary

The opposite hue (180°).

  • #250506

    #250506

    oklch(17.9% 0.056 22.4)

  • #001517

    #001517

    oklch(17.8% 0.03 202.6)

Open the complementary palette in the generator

Analogous

Neighbouring hues, 30° either side.

  • #250506

    #250506

    oklch(17.9% 0.056 22.4)

  • #230514

    #230514

    oklch(18% 0.056 352.4)

  • #210A00

    #210A00

    oklch(18% 0.047 51.1)

Open the analogous palette in the generator

Split complementary

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

  • #250506

    #250506

    oklch(17.9% 0.056 22.4)

  • #001610

    #001610

    oklch(17.9% 0.034 173.7)

  • #00141F

    #00141F

    oklch(18% 0.037 232.6)

Open the split complementary palette in the generator

Triadic

Three hues spaced 120° apart.

  • #250506

    #250506

    oklch(17.9% 0.056 22.4)

  • #021701

    #021701

    oklch(17.9% 0.056 141.6)

  • #04102A

    #04102A

    oklch(18% 0.056 261.7)

Open the triadic palette in the generator

Square

Four hues spaced 90° apart.

  • #250506

    #250506

    oklch(17.9% 0.056 22.4)

  • #121300

    #121300

    oklch(18% 0.04 112.1)

  • #001517

    #001517

    oklch(17.8% 0.03 202.6)

  • #130B27

    #130B27

    oklch(17.9% 0.055 293.2)

Open the square palette in the generator

Palettes with this color

Curated palettes that contain a color within ΔE 0.04 (OKLab) of #250506, closest first.

Similar named colors

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

Use #250506 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.