#211B2A

Closest named color: Dark (#1B2431). oklch(23.6% 0.029 302.5), rgb(33, 27, 42).

Aa

White text reads best on this color (16.73:1).

About this color

#211B2A is a very dark close to neutral grey. In OKLCH its lightness is 24%, its chroma 0.029. It has too little chroma to lean warm or cool. The nearest named color is Dark (#1B2431), ΔE 0.031 away. White text reads best on it, at 16.73:1.

Hue familyNeutrals
Lightnessvery dark (24%)
Chromaclose to neutral grey (0.029)
Temperatureneutral
Nearest nameDark (#1B2431)
Black text1.25:1
White text16.73:1

Values

HEX#211B2A
RGBrgb(33, 27, 42)
HSLhsl(264, 22%, 14%)
OKLCHoklch(23.6% 0.029 302.5)

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 #211B2A 16.73:1 AAA Lc -106.1 Preferred for body text
Black text on #211B2A 1.25:1 Fails Lc 0.0 Not readable
#211B2A text on white 16.73:1 AAA Lc 103.7 Preferred for body text
#211B2A text on black 1.25:1 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

    #F6F5F8

    oklch(97.2% 0.004 301.4)

  2. Step 100

    100

    #EBE8F0

    oklch(93.6% 0.011 303.1)

  3. Step 200

    200

    #DBD6E4

    oklch(88.4% 0.02 302.2)

  4. Step 300

    300

    #C5BCD4

    oklch(81% 0.035 302.6)

  5. Step 400

    400

    #A799BE

    oklch(70.8% 0.055 302.3)

  6. Step 500

    500

    #927FAE

    oklch(63.1% 0.072 302.9)

  7. Step 600

    600

    #7C6899

    oklch(55.5% 0.078 302.7)

  8. Step 700

    700

    #695783

    oklch(49.2% 0.072 302.6)

  9. Step 800

    800

    #55476A

    oklch(42.7% 0.059 302.3)

  10. Step 900

    900

    #463C56

    oklch(37.7% 0.045 301.9)

  11. Step 950

    950 (this color)

    #211B2A

    oklch(23.6% 0.029 302.5)

Export this scale for Tailwind in the Tailwind colors tool

#211B2A 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)#181E2B0.018
Deuteranopia (no green cones)#191E2A0.017
Tritanopia (no blue cones)#201D200.023
Achromatopsia (no color)#1E1E1E0.030

Harmonies

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

Complementary

The opposite hue (180°).

  • #211B2A

    #211B2A

    oklch(23.6% 0.029 302.5)

  • #1C2111

    #1C2111

    oklch(23.8% 0.03 122.8)

Open the complementary palette in the generator

Analogous

Neighbouring hues, 30° either side.

  • #211B2A

    #211B2A

    oklch(23.6% 0.029 302.5)

  • #1A1D2C

    #1A1D2C

    oklch(23.5% 0.029 275.2)

  • #271924

    #271924

    oklch(23.6% 0.03 334.3)

Open the analogous palette in the generator

Split complementary

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

  • #211B2A

    #211B2A

    oklch(23.6% 0.029 302.5)

  • #231E0D

    #231E0D

    oklch(23.6% 0.03 93.5)

  • #132218

    #132218

    oklch(23.5% 0.028 154.5)

Open the split complementary palette in the generator

Triadic

Three hues spaced 120° apart.

  • #211B2A

    #211B2A

    oklch(23.6% 0.029 302.5)

  • #281B0F

    #281B0F

    oklch(23.5% 0.029 63.3)

  • #0C231F

    #0C231F

    oklch(23.6% 0.03 180.8)

Open the triadic palette in the generator

Square

Four hues spaced 90° apart.

  • #211B2A

    #211B2A

    oklch(23.6% 0.029 302.5)

  • #2B1915

    #2B1915

    oklch(23.6% 0.03 33.1)

  • #1C2111

    #1C2111

    oklch(23.8% 0.03 122.8)

  • #0C2227

    #0C2227

    oklch(23.7% 0.029 214.5)

Open the square palette in the generator

Palettes with this color

Curated palettes that contain a color within ΔE 0.04 (OKLab) of #211B2A, closest first.

Similar named colors

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

Use #211B2A 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.