#222F52
Closest named color: Prussian Blue (#1D3557). oklch(31.2% 0.065 267.2), rgb(34, 47, 82).
Aa
White text reads best on this color (13.15:1).
About this color
#222F52 is a dark, muted blue. In OKLCH its lightness is 31%, its chroma 0.065 and its hue 267°. 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 13.15:1.
| Hue family | Blues |
| Lightness | dark (31%) |
| Chroma | muted (0.065) |
| Temperature | cool |
| Nearest name | Prussian Blue (#1D3557) |
| Black text | 1.59:1 |
| White text | 13.15:1 |
Values
| HEX | #222F52 |
| RGB | rgb(34, 47, 82) |
| HSL | hsl(224, 41%, 23%) |
| OKLCH | oklch(31.2% 0.065 267.2) |
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 #222F52 | 13.15:1 | AAA | Lc -102.6 | Preferred for body text |
| Black text on #222F52 | 1.59:1 | Fails | Lc 0.0 | Not readable |
| #222F52 text on white | 13.15:1 | AAA | Lc 99.4 | Preferred for body text |
| #222F52 text on black | 1.59:1 | 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
#F2F5FD
oklch(97% 0.011 269.6)
-
Step 100
100
#E3EAF9
oklch(93.6% 0.022 265.8)
-
Step 200
200
#CCD9F7
oklch(88.5% 0.044 266.9)
-
Step 300
300
#AAC0F4
oklch(80.9% 0.078 266.8)
-
Step 400
400
#7E9DEE
oklch(70.6% 0.124 267.3)
-
Step 500
500
#5F83E9
oklch(63.2% 0.158 267.2)
-
Step 600
600
#466AD7
oklch(55.7% 0.172 266.9)
-
Step 700
700
#3857BA
oklch(49% 0.16 267.2)
-
Step 800
800
#2F4897
oklch(42.8% 0.133 267.3)
-
Step 900
900
#293D78
oklch(37.7% 0.104 267.2)
-
Step 950
950 (this color)
#222F52
oklch(31.2% 0.065 267.2)
#222F52 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) | #213353 | 0.012 |
| Deuteranopia (no green cones) | #1B2E51 | 0.010 |
| Tritanopia (no blue cones) | #09373C | 0.060 |
| Achromatopsia (no color) | #303030 | 0.066 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #222F52
#222F52
oklch(31.2% 0.065 267.2)
- #3F2E00
#3F2E00
oklch(31.2% 0.064 86.4)
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 #222F52, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Prussian Blue #1D3557 ΔE 0.019
- Space Cadet #2B2D42 ΔE 0.030
- Gunmetal #293241 ΔE 0.036
- Marine #042E60 ΔE 0.038
- Dark Blue Grey #1F3B4D ΔE 0.043
- Midnight Green #073B4C ΔE 0.047
- Oxford Blue #1B263B ΔE 0.049
- Marine Blue #01386A ΔE 0.050
Use #222F52 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.