#222E4F
Closest named color: Prussian Blue (#1D3557). oklch(30.8% 0.062 267.6), rgb(34, 46, 79).
Aa
White text reads best on this color (13.36:1).
About this color
#222E4F is a dark, muted blue. In OKLCH its lightness is 31%, its chroma 0.062 and its hue 268°. Its hue sits on the cool side of the wheel. The nearest named color is Prussian Blue (#1D3557), ΔE 0.024 away. White text reads best on it, at 13.36:1.
| Hue family | Blues |
| Lightness | dark (31%) |
| Chroma | muted (0.062) |
| Temperature | cool |
| Nearest name | Prussian Blue (#1D3557) |
| Black text | 1.57:1 |
| White text | 13.36:1 |
Values
| HEX | #222E4F |
| RGB | rgb(34, 46, 79) |
| HSL | hsl(224, 40%, 22%) |
| OKLCH | oklch(30.8% 0.062 267.6) |
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 #222E4F | 13.36:1 | AAA | Lc -102.9 | Preferred for body text |
| Black text on #222E4F | 1.57:1 | Fails | Lc 0.0 | Not readable |
| #222E4F text on white | 13.36:1 | AAA | Lc 99.7 | Preferred for body text |
| #222E4F text on black | 1.57:1 | 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
#F2F5FC
oklch(97% 0.01 267.4)
-
Step 100
100
#E4EAF9
oklch(93.7% 0.021 268.4)
-
Step 200
200
#CDD9F5
oklch(88.5% 0.041 267.1)
-
Step 300
300
#ACC0F1
oklch(81% 0.073 267.4)
-
Step 400
400
#819DEA
oklch(70.6% 0.118 268.1)
-
Step 500
500
#6283E4
oklch(63.1% 0.151 267.8)
-
Step 600
600
#4A6BD1
oklch(55.7% 0.162 267.5)
-
Step 700
700
#3B58B5
oklch(49% 0.151 267.5)
-
Step 800
800
#314993
oklch(42.8% 0.125 267.4)
-
Step 900
900
#2B3E75
oklch(37.8% 0.097 267.3)
-
Step 950
950 (this color)
#222E4F
oklch(30.8% 0.062 267.6)
#222E4F 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) | #213150 | 0.009 |
| Deuteranopia (no green cones) | #1C2D4E | 0.009 |
| Tritanopia (no blue cones) | #0D353A | 0.056 |
| Achromatopsia (no color) | #2F2F2F | 0.062 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #222E4F
#222E4F
oklch(30.8% 0.062 267.6)
- #3D2D01
#3D2D01
oklch(30.7% 0.062 87)
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 #222E4F, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Prussian Blue #1D3557 ΔE 0.024
- Space Cadet #2B2D42 ΔE 0.026
- Gunmetal #293241 ΔE 0.033
- Marine #042E60 ΔE 0.041
- Oxford Blue #1B263B ΔE 0.044
- Dark Blue Grey #1F3B4D ΔE 0.044
- Midnight Green #073B4C ΔE 0.048
- Marine Blue #01386A ΔE 0.055
Use #222E4F 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.