#21222A
Closest named color: Jet (#212529). oklch(25.4% 0.015 279.6), rgb(33, 34, 42).
Aa
White text reads best on this color (15.82:1).
About this color
#21222A is a dark close to neutral grey. In OKLCH its lightness is 25%, its chroma 0.015. It has too little chroma to lean warm or cool. The nearest named color is Jet (#212529), ΔE 0.012 away. White text reads best on it, at 15.82:1.
| Hue family | Neutrals |
| Lightness | dark (25%) |
| Chroma | close to neutral grey (0.015) |
| Temperature | neutral |
| Nearest name | Jet (#212529) |
| Black text | 1.32:1 |
| White text | 15.82:1 |
Values
| HEX | #21222A |
| RGB | rgb(33, 34, 42) |
| HSL | hsl(233, 12%, 15%) |
| OKLCH | oklch(25.4% 0.015 279.6) |
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.
| Pair | WCAG 2 | Result | APCA | APCA guidance |
|---|---|---|---|---|
| White text on #21222A | 15.82:1 | AAA | Lc -105.4 | Preferred for body text |
| Black text on #21222A | 1.32:1 | Fails | Lc 0.0 | Not readable |
| #21222A text on white | 15.82:1 | AAA | Lc 102.8 | Preferred for body text |
| #21222A text on black | 1.32:1 | 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.
-
Step 50
50
#F5F5F7
oklch(97.1% 0.003 286.4)
-
Step 100
100
#E9E9ED
oklch(93.5% 0.005 286.3)
-
Step 200
200
#D7D8E0
oklch(88.4% 0.011 280.5)
-
Step 300
300
#BEC0CC
oklch(81% 0.017 278.4)
-
Step 400
400
#9C9FB3
oklch(70.7% 0.029 278.9)
-
Step 500
500
#8488A0
oklch(63.2% 0.036 277.8)
-
Step 600
600
#6E718B
oklch(55.6% 0.04 279.8)
-
Step 700
700
#5C5F76
oklch(49.2% 0.037 279.1)
-
Step 800
800
#4B4D60
oklch(42.6% 0.032 280.3)
-
Step 900
900
#3F404E
oklch(37.6% 0.024 282)
-
Step 950
950 (this color)
#21222A
oklch(25.4% 0.015 279.6)
#21222A 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.
| Vision | Seen as | Shift (ΔE) |
|---|---|---|
| Protanopia (no red cones) | #20232A | 0.004 |
| Deuteranopia (no green cones) | #20222A | 0.002 |
| Tritanopia (no blue cones) | #1F2325 | 0.012 |
| Achromatopsia (no color) | #222222 | 0.015 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #21222A
#21222A
oklch(25.4% 0.015 279.6)
- #24231B
#24231B
oklch(25.4% 0.015 101.5)
Analogous
Neighbouring hues, 30° either side.
Split complementary
The two hues beside the complement (150° and 210°).
Triadic
Three hues spaced 120° apart.
Palettes with this color
Curated palettes that contain a color within ΔE 0.04 (OKLab) of #21222A, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Jet #212529 ΔE 0.012
- Dark #1B2431 ΔE 0.015
- Oxford Blue #1B263B ΔE 0.032
- Rich Black #0D1B2A ΔE 0.044
- Space Cadet #2B2D42 ΔE 0.055
- Gunmetal #293241 ΔE 0.063
- Dark Brown #341C02 ΔE 0.067
- Chocolate Brown #411900 ΔE 0.084
Use #21222A 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.