#212C63
Closest named color: Marine (#042E60). oklch(31.7% 0.098 271.3), rgb(33, 44, 99).
Aa
White text reads best on this color (13.08:1).
About this color
#212C63 is a dark, moderately saturated blue. In OKLCH its lightness is 32%, its chroma 0.098 and its hue 271°. Its hue sits on the cool side of the wheel. The nearest named color is Marine (#042E60), ΔE 0.028 away. White text reads best on it, at 13.08:1.
| Hue family | Blues |
| Lightness | dark (32%) |
| Chroma | moderately saturated (0.098) |
| Temperature | cool |
| Nearest name | Marine (#042E60) |
| Black text | 1.60:1 |
| White text | 13.08:1 |
Values
| HEX | #212C63 |
| RGB | rgb(33, 44, 99) |
| HSL | hsl(230, 50%, 26%) |
| OKLCH | oklch(31.7% 0.098 271.3) |
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 #212C63 | 13.08:1 | AAA | Lc -102.4 | Preferred for body text |
| Black text on #212C63 | 1.60:1 | Fails | Lc 0.0 | Not readable |
| #212C63 text on white | 13.08:1 | AAA | Lc 99.1 | Preferred for body text |
| #212C63 text on black | 1.60:1 | 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
#AABEFF
oklch(81% 0.095 271)
-
Step 400
400
#7F99FF
oklch(70.8% 0.152 271.3)
-
Step 500
500
#607AFF
oklch(63% 0.199 271.3)
-
Step 600
600
#4757FF
oklch(55.5% 0.245 271.3)
-
Step 700
700
#3942E5
oklch(49.2% 0.239 271.2)
-
Step 800
800
#2E38B9
oklch(42.7% 0.199 271.2)
-
Step 900
900
#273392
oklch(37.7% 0.155 271.1)
-
Step 950
950 (this color)
#212C63
oklch(31.7% 0.098 271.3)
#212C63 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) | #0B3465 | 0.028 |
| Deuteranopia (no green cones) | #002E62 | 0.030 |
| Tritanopia (no blue cones) | #003943 | 0.083 |
| Achromatopsia (no color) | #313131 | 0.098 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #212C63
#212C63
oklch(31.7% 0.098 271.3)
- #3E3000
#3E3000
oklch(31.6% 0.065 91.1)
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 #212C63, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Marine #042E60 ΔE 0.028
- Prussian Blue #1D3557 ΔE 0.037
- Marine Blue #01386A ΔE 0.040
- Midnight Blue #191970 ΔE 0.054
- Space Cadet #2B2D42 ΔE 0.062
- Dark Blue Grey #1F3B4D ΔE 0.067
- Gunmetal #293241 ΔE 0.069
- Midnight Green #073B4C ΔE 0.071
Use #212C63 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.