#212A50
Closest named color: Space Cadet (#2B2D42). oklch(29.8% 0.07 271.6), rgb(33, 42, 80).
Aa
White text reads best on this color (13.89:1).
About this color
#212A50 is a dark, muted blue. In OKLCH its lightness is 30%, its chroma 0.070 and its hue 272°. Its hue sits on the cool side of the wheel. The nearest named color is Space Cadet (#2B2D42), ΔE 0.034 away. White text reads best on it, at 13.89:1.
| Hue family | Blues |
| Lightness | dark (30%) |
| Chroma | muted (0.070) |
| Temperature | cool |
| Nearest name | Space Cadet (#2B2D42) |
| Black text | 1.51:1 |
| White text | 13.89:1 |
Values
| HEX | #212A50 |
| RGB | rgb(33, 42, 80) |
| HSL | hsl(229, 42%, 22%) |
| OKLCH | oklch(29.8% 0.07 271.6) |
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 #212A50 | 13.89:1 | AAA | Lc -103.5 | Preferred for body text |
| Black text on #212A50 | 1.51:1 | Fails | Lc 0.0 | Not readable |
| #212A50 text on white | 13.89:1 | AAA | Lc 100.4 | Preferred for body text |
| #212A50 text on black | 1.51:1 | 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
#F3F5FD
oklch(97.1% 0.011 274.9)
-
Step 100
100
#E4E9FA
oklch(93.5% 0.024 272.8)
-
Step 200
200
#CED8F8
oklch(88.5% 0.045 271.7)
-
Step 300
300
#ADBEF7
oklch(80.9% 0.083 271.6)
-
Step 400
400
#839AF3
oklch(70.6% 0.133 271.7)
-
Step 500
500
#667FEE
oklch(63.2% 0.168 271.3)
-
Step 600
600
#4F65DD
oklch(55.6% 0.184 271.3)
-
Step 700
700
#4153C0
oklch(49.2% 0.171 271.5)
-
Step 800
800
#35449B
oklch(42.6% 0.142 271.6)
-
Step 900
900
#2E3B7B
oklch(37.8% 0.109 271.6)
-
Step 950
950 (this color)
#212A50
oklch(29.8% 0.07 271.6)
#212A50 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) | #1A2F51 | 0.017 |
| Deuteranopia (no green cones) | #142A4F | 0.017 |
| Tritanopia (no blue cones) | #0A3239 | 0.061 |
| Achromatopsia (no color) | #2C2C2C | 0.070 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #212A50
#212A50
oklch(29.8% 0.07 271.6)
- #382C00
#382C00
oklch(29.8% 0.061 92.6)
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 #212A50, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Space Cadet #2B2D42 ΔE 0.034
- Prussian Blue #1D3557 ΔE 0.034
- Marine #042E60 ΔE 0.038
- Oxford Blue #1B263B ΔE 0.041
- Gunmetal #293241 ΔE 0.045
- Dark Blue Grey #1F3B4D ΔE 0.057
- Dark #1B2431 ΔE 0.059
- Marine Blue #01386A ΔE 0.059
Use #212A50 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.