#222F57
Closest named color: Prussian Blue (#1D3557). oklch(31.6% 0.074 268.4), rgb(34, 47, 87).
Aa
White text reads best on this color (13.02:1).
About this color
#222F57 is a dark, moderately saturated blue. In OKLCH its lightness is 32%, its chroma 0.074 and its hue 268°. Its hue sits on the cool side of the wheel. The nearest named color is Prussian Blue (#1D3557), ΔE 0.019 away. White text reads best on it, at 13.02:1.
| Hue family | Blues |
| Lightness | dark (32%) |
| Chroma | moderately saturated (0.074) |
| Temperature | cool |
| Nearest name | Prussian Blue (#1D3557) |
| Black text | 1.61:1 |
| White text | 13.02:1 |
Values
| HEX | #222F57 |
| RGB | rgb(34, 47, 87) |
| HSL | hsl(225, 44%, 24%) |
| OKLCH | oklch(31.6% 0.074 268.4) |
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 #222F57 | 13.02:1 | AAA | Lc -102.4 | Preferred for body text |
| Black text on #222F57 | 1.61:1 | Fails | Lc 0.0 | Not readable |
| #222F57 text on white | 13.02:1 | AAA | Lc 99.1 | Preferred for body text |
| #222F57 text on black | 1.61:1 | 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
#F2F5FE
oklch(97% 0.012 271.3)
-
Step 100
100
#E3EAFB
oklch(93.7% 0.024 267.9)
-
Step 200
200
#CBD9FA
oklch(88.5% 0.048 267.2)
-
Step 300
300
#A9BFFA
oklch(80.9% 0.087 268.6)
-
Step 400
400
#7C9BF7
oklch(70.6% 0.139 268.6)
-
Step 500
500
#5D7FF4
oklch(63% 0.179 268.7)
-
Step 600
600
#4565E3
oklch(55.6% 0.195 268.5)
-
Step 700
700
#3753C5
oklch(49.1% 0.18 268.4)
-
Step 800
800
#2E459F
oklch(42.7% 0.149 268.5)
-
Step 900
900
#283B7E
oklch(37.6% 0.116 268.4)
-
Step 950
950 (this color)
#222F57
oklch(31.6% 0.074 268.4)
#222F57 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) | #1E3359 | 0.013 |
| Deuteranopia (no green cones) | #172F56 | 0.014 |
| Tritanopia (no blue cones) | #03383E | 0.067 |
| Achromatopsia (no color) | #313131 | 0.074 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #222F57
#222F57
oklch(31.6% 0.074 268.4)
- #3F2F00
#3F2F00
oklch(31.5% 0.064 88.1)
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 #222F57, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Prussian Blue #1D3557 ΔE 0.019
- Marine #042E60 ΔE 0.033
- Space Cadet #2B2D42 ΔE 0.039
- Marine Blue #01386A ΔE 0.044
- Gunmetal #293241 ΔE 0.044
- Dark Blue Grey #1F3B4D ΔE 0.047
- Midnight Green #073B4C ΔE 0.052
- Oxford Blue #1B263B ΔE 0.056
Use #222F57 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.