#212756
Closest named color: Marine (#042E60). oklch(29.5% 0.084 274.6), rgb(33, 39, 86).
Aa
White text reads best on this color (14.10:1).
About this color
#212756 is a dark, moderately saturated blue. In OKLCH its lightness is 30%, its chroma 0.084 and its hue 275°. Its hue sits on the cool side of the wheel. The nearest named color is Marine (#042E60), ΔE 0.035 away. White text reads best on it, at 14.10:1.
| Hue family | Blues |
| Lightness | dark (30%) |
| Chroma | moderately saturated (0.084) |
| Temperature | cool |
| Nearest name | Marine (#042E60) |
| Black text | 1.48:1 |
| White text | 14.10:1 |
Values
| HEX | #212756 |
| RGB | rgb(33, 39, 86) |
| HSL | hsl(233, 45%, 23%) |
| OKLCH | oklch(29.5% 0.084 274.6) |
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 #212756 | 14.10:1 | AAA | Lc -103.6 | Preferred for body text |
| Black text on #212756 | 1.48:1 | Fails | Lc 0.0 | Not readable |
| #212756 text on white | 14.10:1 | AAA | Lc 100.6 | Preferred for body text |
| #212756 text on black | 1.48:1 | 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
#E4E9FE
oklch(93.7% 0.029 275.2)
-
Step 200
200
#CED7FF
oklch(88.5% 0.056 275.2)
-
Step 300
300
#AEBCFF
oklch(80.9% 0.096 274.9)
-
Step 400
400
#8597FF
oklch(70.8% 0.153 274.4)
-
Step 500
500
#6978FF
oklch(63.1% 0.199 274.4)
-
Step 600
600
#545AF1
oklch(55.5% 0.222 274.8)
-
Step 700
700
#4549D2
oklch(49.2% 0.206 274.6)
-
Step 800
800
#383DAA
oklch(42.7% 0.171 274.5)
-
Step 900
900
#2F3686
oklch(37.7% 0.132 274.4)
-
Step 950
950 (this color)
#212756
oklch(29.5% 0.084 274.6)
#212756 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) | #0F2E58 | 0.027 |
| Deuteranopia (no green cones) | #062955 | 0.029 |
| Tritanopia (no blue cones) | #03323A | 0.075 |
| Achromatopsia (no color) | #2B2B2B | 0.085 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #212756
#212756
oklch(29.5% 0.084 274.6)
- #362C00
#362C00
oklch(29.5% 0.061 95.5)
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 #212756, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Marine #042E60 ΔE 0.035
- Prussian Blue #1D3557 ΔE 0.043
- Space Cadet #2B2D42 ΔE 0.048
- Oxford Blue #1B263B ΔE 0.051
- Marine Blue #01386A ΔE 0.059
- Gunmetal #293241 ΔE 0.059
- Midnight Blue #191970 ΔE 0.060
- Dark #1B2431 ΔE 0.069
Use #212756 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.