#02275C
Closest named color: Marine (#042E60). oklch(28.5% 0.104 258.4), rgb(2, 39, 92).
Aa
White text reads best on this color (14.50:1).
About this color
#02275C is a dark, moderately saturated blue. In OKLCH its lightness is 29%, its chroma 0.104 and its hue 258°. Its hue sits on the cool side of the wheel. The nearest named color is Marine (#042E60), ΔE 0.022 away. White text reads best on it, at 14.50:1.
| Hue family | Blues |
| Lightness | dark (29%) |
| Chroma | moderately saturated (0.104) |
| Temperature | cool |
| Nearest name | Marine (#042E60) |
| Black text | 1.44:1 |
| White text | 14.50:1 |
Values
| HEX | #02275C |
| RGB | rgb(2, 39, 92) |
| HSL | hsl(215, 96%, 18%) |
| OKLCH | oklch(28.5% 0.104 258.4) |
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 #02275C | 14.50:1 | AAA | Lc -103.8 | Preferred for body text |
| Black text on #02275C | 1.44:1 | Fails | Lc 0.0 | Not readable |
| #02275C text on white | 14.50:1 | AAA | Lc 100.8 | Preferred for body text |
| #02275C text on black | 1.44:1 | 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
#F0F6FF
oklch(97.1% 0.014 258.3)
-
Step 100
100
#DEEBFF
oklch(93.6% 0.031 258.9)
-
Step 200
200
#C3DBFF
oklch(88.5% 0.056 258.4)
-
Step 300
300
#9AC2FF
oklch(80.8% 0.097 258.7)
-
Step 400
400
#62A0FF
oklch(70.7% 0.154 258.7)
-
Step 500
500
#3084FF
oklch(63% 0.2 258.6)
-
Step 600
600
#006BEB
oklch(55.7% 0.21 258.5)
-
Step 700
700
#005AC7
oklch(49.2% 0.185 258.3)
-
Step 800
800
#0049A5
oklch(42.7% 0.162 258.5)
-
Step 900
900
#003C8B
oklch(37.6% 0.143 258.6)
-
Step 950
950 (this color)
#02275C
oklch(28.5% 0.104 258.4)
#02275C 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) | #002D5E | 0.018 |
| Deuteranopia (no green cones) | #00255B | 0.007 |
| Tritanopia (no blue cones) | #00343D | 0.078 |
| Achromatopsia (no color) | #292929 | 0.104 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #02275C
#02275C
oklch(28.5% 0.104 258.4)
- #3A2600
#3A2600
oklch(28.6% 0.059 78.6)
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 #02275C, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Marine #042E60 ΔE 0.022
- Midnight Blue #191970 ΔE 0.050
- Marine Blue #01386A ΔE 0.055
- Prussian Blue #1D3557 ΔE 0.055
- Oxford Blue #1B263B ΔE 0.064
- Darkblue #030764 ΔE 0.069
- Dark Royal Blue #02066F ΔE 0.071
- Space Cadet #2B2D42 ΔE 0.072
Use #02275C 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.