#222C4E
Closest named color: Space Cadet (#2B2D42). oklch(30.2% 0.063 269.9), rgb(34, 44, 78).
Aa
White text reads best on this color (13.65:1).
About this color
#222C4E is a dark, muted blue. In OKLCH its lightness is 30%, its chroma 0.063 and its hue 270°. Its hue sits on the cool side of the wheel. The nearest named color is Space Cadet (#2B2D42), ΔE 0.027 away. White text reads best on it, at 13.65:1.
| Hue family | Blues |
| Lightness | dark (30%) |
| Chroma | muted (0.063) |
| Temperature | cool |
| Nearest name | Space Cadet (#2B2D42) |
| Black text | 1.53:1 |
| White text | 13.65:1 |
Values
| HEX | #222C4E |
| RGB | rgb(34, 44, 78) |
| HSL | hsl(226, 39%, 22%) |
| OKLCH | oklch(30.2% 0.063 269.9) |
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 #222C4E | 13.65:1 | AAA | Lc -103.2 | Preferred for body text |
| Black text on #222C4E | 1.53:1 | Fails | Lc 0.0 | Not readable |
| #222C4E text on white | 13.65:1 | AAA | Lc 100.1 | Preferred for body text |
| #222C4E text on black | 1.53:1 | 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
#F3F5FC
oklch(97.1% 0.01 273.4)
-
Step 100
100
#E4EAF9
oklch(93.7% 0.021 268.4)
-
Step 200
200
#CED9F6
oklch(88.6% 0.042 269)
-
Step 300
300
#AEBFF2
oklch(80.9% 0.075 270.3)
-
Step 400
400
#839CEB
oklch(70.6% 0.12 269.8)
-
Step 500
500
#6682E5
oklch(63.2% 0.152 269.8)
-
Step 600
600
#4F69D3
oklch(55.7% 0.165 269.9)
-
Step 700
700
#4056B7
oklch(49% 0.155 270.1)
-
Step 800
800
#354794
oklch(42.7% 0.128 270.3)
-
Step 900
900
#2D3D76
oklch(37.8% 0.099 269.4)
-
Step 950
950 (this color)
#222C4E
oklch(30.2% 0.063 269.9)
#222C4E 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) | #1E304F | 0.013 |
| Deuteranopia (no green cones) | #1A2C4D | 0.011 |
| Tritanopia (no blue cones) | #0E3339 | 0.056 |
| Achromatopsia (no color) | #2E2E2E | 0.063 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #222C4E
#222C4E
oklch(30.2% 0.063 269.9)
- #3A2C00
#3A2C00
oklch(30.1% 0.061 89.8)
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 #222C4E, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Space Cadet #2B2D42 ΔE 0.027
- Prussian Blue #1D3557 ΔE 0.030
- Gunmetal #293241 ΔE 0.037
- Oxford Blue #1B263B ΔE 0.040
- Marine #042E60 ΔE 0.041
- Dark Blue Grey #1F3B4D ΔE 0.050
- Midnight Green #073B4C ΔE 0.053
- Dark #1B2431 ΔE 0.057
Use #222C4E 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.