#212C6A
Closest named color: Marine (#042E60). oklch(32.3% 0.109 271.4), rgb(33, 44, 106).
Aa
White text reads best on this color (12.85:1).
About this color
#212C6A is a dark, moderately saturated blue. In OKLCH its lightness is 32%, its chroma 0.109 and its hue 271°. Its hue sits on the cool side of the wheel. The nearest named color is Marine (#042E60), ΔE 0.033 away. White text reads best on it, at 12.85:1.
| Hue family | Blues |
| Lightness | dark (32%) |
| Chroma | moderately saturated (0.109) |
| Temperature | cool |
| Nearest name | Marine (#042E60) |
| Black text | 1.63:1 |
| White text | 12.85:1 |
Values
| HEX | #212C6A |
| RGB | rgb(33, 44, 106) |
| HSL | hsl(231, 53%, 27%) |
| OKLCH | oklch(32.3% 0.109 271.4) |
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 #212C6A | 12.85:1 | AAA | Lc -102.1 | Preferred for body text |
| Black text on #212C6A | 1.63:1 | Fails | Lc 0.0 | Not readable |
| #212C6A text on white | 12.85:1 | AAA | Lc 98.7 | Preferred for body text |
| #212C6A text on black | 1.63:1 | 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
#F2F5FF
oklch(97.1% 0.014 272.7)
-
Step 100
100
#E2E9FF
oklch(93.5% 0.031 271.7)
-
Step 200
200
#CBD8FF
oklch(88.5% 0.056 270.7)
-
Step 300
300
#AABDFF
oklch(80.8% 0.096 271.7)
-
Step 400
400
#7F99FF
oklch(70.8% 0.152 271.3)
-
Step 500
500
#617AFF
oklch(63% 0.198 271.6)
-
Step 600
600
#4757FF
oklch(55.5% 0.245 271.3)
-
Step 700
700
#3937F3
oklch(49.2% 0.265 271.5)
-
Step 800
800
#2E30C4
oklch(42.7% 0.22 271.6)
-
Step 900
900
#262F9A
oklch(37.7% 0.171 271.3)
-
Step 950
950 (this color)
#212C6A
oklch(32.3% 0.109 271.4)
#212C6A 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) | #00356C | 0.033 |
| Deuteranopia (no green cones) | #002F69 | 0.029 |
| Tritanopia (no blue cones) | #003B46 | 0.091 |
| Achromatopsia (no color) | #323232 | 0.109 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #212C6A
#212C6A
oklch(32.3% 0.109 271.4)
- #403200
#403200
oklch(32.3% 0.066 91.6)
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 #212C6A, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Marine #042E60 ΔE 0.033
- Marine Blue #01386A ΔE 0.039
- Prussian Blue #1D3557 ΔE 0.046
- Midnight Blue #191970 ΔE 0.050
- Twilight Blue #0A437A ΔE 0.068
- Space Cadet #2B2D42 ΔE 0.074
- Dark Blue Grey #1F3B4D ΔE 0.076
- Midnight Green #073B4C ΔE 0.080
Use #212C6A 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.