#212D33
Closest named color: Jet (#212529). oklch(28.9% 0.02 229.9), rgb(33, 45, 51).
Aa
White text reads best on this color (14.11:1).
About this color
#212D33 is a dark close to neutral grey. In OKLCH its lightness is 29%, its chroma 0.020. It has too little chroma to lean warm or cool. The nearest named color is Jet (#212529), ΔE 0.029 away. White text reads best on it, at 14.11:1.
| Hue family | Neutrals |
| Lightness | dark (29%) |
| Chroma | close to neutral grey (0.020) |
| Temperature | neutral |
| Nearest name | Jet (#212529) |
| Black text | 1.48:1 |
| White text | 14.11:1 |
Values
| HEX | #212D33 |
| RGB | rgb(33, 45, 51) |
| HSL | hsl(200, 21%, 16%) |
| OKLCH | oklch(28.9% 0.02 229.9) |
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 #212D33 | 14.11:1 | AAA | Lc -103.8 | Preferred for body text |
| Black text on #212D33 | 1.48:1 | Fails | Lc 0.0 | Not readable |
| #212D33 text on white | 14.11:1 | AAA | Lc 100.8 | Preferred for body text |
| #212D33 text on black | 1.48:1 | 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
#F3F6F7
oklch(97.1% 0.003 219.5)
-
Step 100
100
#E5EBED
oklch(93.6% 0.007 219.6)
-
Step 200
200
#D1DBE0
oklch(88.5% 0.013 228.9)
-
Step 300
300
#B2C4CD
oklch(80.9% 0.023 229.2)
-
Step 400
400
#89A5B4
oklch(70.6% 0.038 231.4)
-
Step 500
500
#6C8FA1
oklch(63% 0.048 230.8)
-
Step 600
600
#53798C
oklch(55.5% 0.052 230.5)
-
Step 700
700
#436677
oklch(49% 0.049 230)
-
Step 800
800
#385361
oklch(42.6% 0.04 231.5)
-
Step 900
900
#30454F
oklch(37.7% 0.031 229)
-
Step 950
950 (this color)
#212D33
oklch(28.9% 0.02 229.9)
#212D33 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) | #2A2C33 | 0.015 |
| Deuteranopia (no green cones) | #272A33 | 0.013 |
| Tritanopia (no blue cones) | #1B2F2F | 0.015 |
| Achromatopsia (no color) | #2B2B2B | 0.020 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #212D33
#212D33
oklch(28.9% 0.02 229.9)
- #332822
#332822
oklch(28.7% 0.02 50.2)
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 #212D33, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Jet #212529 ΔE 0.029
- Gunmetal #293241 ΔE 0.031
- Space Cadet #2B2D42 ΔE 0.034
- Dark #1B2431 ΔE 0.034
- Oxford Blue #1B263B ΔE 0.034
- Midnight Green #073B4C ΔE 0.056
- Dark Blue Grey #1F3B4D ΔE 0.057
- Onyx #343A40 ΔE 0.057
Use #212D33 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.