#212D4E
Closest named color: Space Cadet (#2B2D42). oklch(30.4% 0.062 267.5), rgb(33, 45, 78).
Aa
White text reads best on this color (13.54:1).
About this color
#212D4E is a dark, muted blue. In OKLCH its lightness is 30%, its chroma 0.062 and its hue 268°. Its hue sits on the cool side of the wheel. The nearest named color is Space Cadet (#2B2D42), ΔE 0.026 away. White text reads best on it, at 13.54:1.
| Hue family | Blues |
| Lightness | dark (30%) |
| Chroma | muted (0.062) |
| Temperature | cool |
| Nearest name | Space Cadet (#2B2D42) |
| Black text | 1.55:1 |
| White text | 13.54:1 |
Values
| HEX | #212D4E |
| RGB | rgb(33, 45, 78) |
| HSL | hsl(224, 41%, 22%) |
| OKLCH | oklch(30.4% 0.062 267.5) |
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.
| Pair | WCAG 2 | Result | APCA | APCA guidance |
|---|---|---|---|---|
| White text on #212D4E | 13.54:1 | AAA | Lc -103.1 | Preferred for body text |
| Black text on #212D4E | 1.55:1 | Fails | Lc 0.0 | Not readable |
| #212D4E text on white | 13.54:1 | AAA | Lc 99.9 | Preferred for body text |
| #212D4E text on black | 1.55:1 | 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
#F2F5FC
oklch(97% 0.01 267.4)
-
Step 100
100
#E3EAF9
oklch(93.6% 0.022 265.8)
-
Step 200
200
#CDD9F5
oklch(88.5% 0.041 267.1)
-
Step 300
300
#ACC0F1
oklch(81% 0.073 267.4)
-
Step 400
400
#809DEA
oklch(70.6% 0.118 267.6)
-
Step 500
500
#6283E4
oklch(63.1% 0.151 267.8)
-
Step 600
600
#4A6BD2
oklch(55.7% 0.163 267.5)
-
Step 700
700
#3B58B6
oklch(49.1% 0.153 267.6)
-
Step 800
800
#314993
oklch(42.8% 0.125 267.4)
-
Step 900
900
#2B3D75
oklch(37.6% 0.098 268)
-
Step 950
950 (this color)
#212D4E
oklch(30.4% 0.062 267.5)
#212D4E 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) | #20304F | 0.009 |
| Deuteranopia (no green cones) | #1B2C4D | 0.009 |
| Tritanopia (no blue cones) | #0B3439 | 0.056 |
| Achromatopsia (no color) | #2E2E2E | 0.062 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #212D4E
#212D4E
oklch(30.4% 0.062 267.5)
- #3C2C00
#3C2C00
oklch(30.3% 0.062 87)
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 #212D4E, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Space Cadet #2B2D42 ΔE 0.026
- Prussian Blue #1D3557 ΔE 0.027
- Gunmetal #293241 ΔE 0.035
- Oxford Blue #1B263B ΔE 0.040
- Marine #042E60 ΔE 0.041
- Dark Blue Grey #1F3B4D ΔE 0.047
- Midnight Green #073B4C ΔE 0.050
- Marine Blue #01386A ΔE 0.057
Use #212D4E 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.