#212A35
Closest named color: Oxford Blue (#1B263B). oklch(28.1% 0.024 253.7), rgb(33, 42, 53).
Aa
White text reads best on this color (14.51:1).
About this color
#212A35 is a dark close to neutral grey. In OKLCH its lightness is 28%, its chroma 0.024. It has too little chroma to lean warm or cool. The nearest named color is Oxford Blue (#1B263B), ΔE 0.023 away. White text reads best on it, at 14.51:1.
| Hue family | Neutrals |
| Lightness | dark (28%) |
| Chroma | close to neutral grey (0.024) |
| Temperature | neutral |
| Nearest name | Oxford Blue (#1B263B) |
| Black text | 1.44:1 |
| White text | 14.51:1 |
Values
| HEX | #212A35 |
| RGB | rgb(33, 42, 53) |
| HSL | hsl(213, 23%, 17%) |
| OKLCH | oklch(28.1% 0.024 253.7) |
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 #212A35 | 14.51:1 | AAA | Lc -104.2 | Preferred for body text |
| Black text on #212A35 | 1.44:1 | Fails | Lc 0.0 | Not readable |
| #212A35 text on white | 14.51:1 | AAA | Lc 101.3 | Preferred for body text |
| #212A35 text on black | 1.44:1 | 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
#F4F6F8
oklch(97.2% 0.003 247.9)
-
Step 100
100
#E6EAEF
oklch(93.5% 0.008 253.9)
-
Step 200
200
#D2DAE4
oklch(88.5% 0.016 253.9)
-
Step 300
300
#B4C2D3
oklch(80.9% 0.029 253.3)
-
Step 400
400
#8DA3BD
oklch(70.7% 0.045 252.7)
-
Step 500
500
#718CAC
oklch(63.1% 0.057 253)
-
Step 600
600
#597698
oklch(55.7% 0.063 252.9)
-
Step 700
700
#496382
oklch(49.2% 0.059 253.3)
-
Step 800
800
#3C5169
oklch(42.8% 0.048 252.2)
-
Step 900
900
#344356
oklch(37.8% 0.038 254.6)
-
Step 950
950 (this color)
#212A35
oklch(28.1% 0.024 253.7)
#212A35 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) | #262A36 | 0.009 |
| Deuteranopia (no green cones) | #242835 | 0.008 |
| Tritanopia (no blue cones) | #1B2C2E | 0.019 |
| Achromatopsia (no color) | #292929 | 0.024 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #212A35
#212A35
oklch(28.1% 0.024 253.7)
- #30281C
#30281C
oklch(28.2% 0.024 77.6)
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 #212A35, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Oxford Blue #1B263B ΔE 0.023
- Dark #1B2431 ΔE 0.024
- Jet #212529 ΔE 0.024
- Space Cadet #2B2D42 ΔE 0.031
- Gunmetal #293241 ΔE 0.035
- Midnight Green #073B4C ΔE 0.062
- Dark Blue Grey #1F3B4D ΔE 0.062
- Prussian Blue #1D3557 ΔE 0.064
Use #212A35 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.