#212F44
Closest named color: Space Cadet (#2B2D42). oklch(30.3% 0.043 258.3), rgb(33, 47, 68).
Aa
White text reads best on this color (13.50:1).
About this color
#212F44 is a dark, muted blue. In OKLCH its lightness is 30%, its chroma 0.043 and its hue 258°. Its hue sits on the cool side of the wheel. The nearest named color is Space Cadet (#2B2D42), ΔE 0.016 away. White text reads best on it, at 13.50:1.
| Hue family | Blues |
| Lightness | dark (30%) |
| Chroma | muted (0.043) |
| Temperature | cool |
| Nearest name | Space Cadet (#2B2D42) |
| Black text | 1.55:1 |
| White text | 13.50:1 |
Values
| HEX | #212F44 |
| RGB | rgb(33, 47, 68) |
| HSL | hsl(216, 35%, 20%) |
| OKLCH | oklch(30.3% 0.043 258.3) |
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 #212F44 | 13.50:1 | AAA | Lc -103.1 | Preferred for body text |
| Black text on #212F44 | 1.55:1 | Fails | Lc 0.0 | Not readable |
| #212F44 text on white | 13.50:1 | AAA | Lc 99.9 | Preferred for body text |
| #212F44 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
#F3F6FA
oklch(97.2% 0.006 255.5)
-
Step 100
100
#E4EAF4
oklch(93.5% 0.015 260.7)
-
Step 200
200
#CEDAEC
oklch(88.5% 0.028 258.4)
-
Step 300
300
#ADC2E2
oklch(80.9% 0.051 258.7)
-
Step 400
400
#81A2D3
oklch(70.6% 0.081 258.1)
-
Step 500
500
#628AC8
oklch(63% 0.104 258.9)
-
Step 600
600
#4873B4
oklch(55.5% 0.113 258.4)
-
Step 700
700
#39619B
oklch(49.1% 0.104 257.7)
-
Step 800
800
#304F7E
oklch(42.7% 0.087 258.5)
-
Step 900
900
#2A4265
oklch(37.7% 0.067 257.7)
-
Step 950
950 (this color)
#212F44
oklch(30.3% 0.043 258.3)
#212F44 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) | #273045 | 0.010 |
| Deuteranopia (no green cones) | #232D44 | 0.007 |
| Tritanopia (no blue cones) | #133436 | 0.039 |
| Achromatopsia (no color) | #2E2E2E | 0.043 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #212F44
#212F44
oklch(30.3% 0.043 258.3)
- #3A2C14
#3A2C14
oklch(30.3% 0.043 79.5)
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 #212F44, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Space Cadet #2B2D42 ΔE 0.016
- Gunmetal #293241 ΔE 0.018
- Oxford Blue #1B263B ΔE 0.034
- Prussian Blue #1D3557 ΔE 0.035
- Dark Blue Grey #1F3B4D ΔE 0.039
- Midnight Green #073B4C ΔE 0.042
- Dark #1B2431 ΔE 0.047
- Onyx #343A40 ΔE 0.052
Use #212F44 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.