#222F6D
Closest named color: Marine Blue (#01386A). oklch(33.3% 0.109 270.5), rgb(34, 47, 109).
Aa
White text reads best on this color (12.38:1).
About this color
#222F6D is a dark, moderately saturated blue. In OKLCH its lightness is 33%, its chroma 0.109 and its hue 271°. Its hue sits on the cool side of the wheel. The nearest named color is Marine Blue (#01386A), ΔE 0.035 away. White text reads best on it, at 12.38:1.
| Hue family | Blues |
| Lightness | dark (33%) |
| Chroma | moderately saturated (0.109) |
| Temperature | cool |
| Nearest name | Marine Blue (#01386A) |
| Black text | 1.69:1 |
| White text | 12.38:1 |
Values
| HEX | #222F6D |
| RGB | rgb(34, 47, 109) |
| HSL | hsl(230, 52%, 28%) |
| OKLCH | oklch(33.3% 0.109 270.5) |
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 #222F6D | 12.38:1 | AAA | Lc -101.4 | Preferred for body text |
| Black text on #222F6D | 1.69:1 | Fails | Lc 0.0 | Not readable |
| #222F6D text on white | 12.38:1 | AAA | Lc 97.9 | Preferred for body text |
| #222F6D text on black | 1.69:1 | 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 900.
-
Step 50
50
#F2F5FD
oklch(97% 0.011 269.6)
-
Step 100
100
#E4E9FA
oklch(93.5% 0.024 272.8)
-
Step 200
200
#CDD8F8
oklch(88.4% 0.046 270.4)
-
Step 300
300
#ACBFF6
oklch(81% 0.081 269.7)
-
Step 400
400
#829BF2
oklch(70.7% 0.131 270.6)
-
Step 500
500
#6480ED
oklch(63.2% 0.166 270.2)
-
Step 600
600
#4D66DB
oklch(55.6% 0.18 270.4)
-
Step 700
700
#3F54BE
oklch(49.1% 0.168 270.6)
-
Step 800
800
#34459A
oklch(42.7% 0.14 270.8)
-
Step 900
900 (this color)
#222F6D
oklch(33.3% 0.109 270.5)
-
Step 950
950
#1A2348
oklch(27% 0.07 270.8)
#222F6D 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) | #03386F | 0.032 |
| Deuteranopia (no green cones) | #00316C | 0.029 |
| Tritanopia (no blue cones) | #003E49 | 0.090 |
| Achromatopsia (no color) | #343434 | 0.109 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #222F6D
#222F6D
oklch(33.3% 0.109 270.5)
- #433400
#433400
oklch(33.2% 0.068 90.9)
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 #222F6D, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Marine Blue #01386A ΔE 0.035
- Marine #042E60 ΔE 0.038
- Prussian Blue #1D3557 ΔE 0.046
- Midnight Blue #191970 ΔE 0.057
- Twilight Blue #0A437A ΔE 0.059
- Dark Blue Grey #1F3B4D ΔE 0.074
- Space Cadet #2B2D42 ΔE 0.077
- Midnight Green #073B4C ΔE 0.079
Use #222F6D 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.