#002C5B
Closest named color: Marine (#042E60). oklch(29.6% 0.096 254.5), rgb(0, 44, 91).
Aa
White text reads best on this color (13.89:1).
About this color
#002C5B is a dark, moderately saturated blue. In OKLCH its lightness is 30%, its chroma 0.096 and its hue 254°. Its hue sits on the cool side of the wheel. The nearest named color is Marine (#042E60), ΔE 0.011 away. White text reads best on it, at 13.89:1.
| Hue family | Blues |
| Lightness | dark (30%) |
| Chroma | moderately saturated (0.096) |
| Temperature | cool |
| Nearest name | Marine (#042E60) |
| Black text | 1.51:1 |
| White text | 13.89:1 |
Values
| HEX | #002C5B |
| RGB | rgb(0, 44, 91) |
| HSL | hsl(211, 100%, 18%) |
| OKLCH | oklch(29.6% 0.096 254.5) |
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 #002C5B | 13.89:1 | AAA | Lc -103.2 | Preferred for body text |
| Black text on #002C5B | 1.51:1 | Fails | Lc 0.0 | Not readable |
| #002C5B text on white | 13.89:1 | AAA | Lc 100.0 | Preferred for body text |
| #002C5B text on black | 1.51:1 | 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
#EFF6FF
oklch(97% 0.014 254.6)
-
Step 100
100
#DCEBFF
oklch(93.5% 0.032 255.6)
-
Step 200
200
#C0DCFF
oklch(88.5% 0.057 254.1)
-
Step 300
300
#95C4FF
oklch(80.9% 0.098 254.5)
-
Step 400
400
#56A3FF
oklch(70.8% 0.155 254.3)
-
Step 500
500
#0587FF
oklch(63% 0.203 254.5)
-
Step 600
600
#0071D9
oklch(55.6% 0.181 254.6)
-
Step 700
700
#005FB7
oklch(49.1% 0.158 254.4)
-
Step 800
800
#004E98
oklch(42.8% 0.138 254.3)
-
Step 900
900
#004080
oklch(37.6% 0.123 254.7)
-
Step 950
950 (this color)
#002C5B
oklch(29.6% 0.096 254.5)
#002C5B 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) | #10315D | 0.021 |
| Deuteranopia (no green cones) | #00295A | 0.009 |
| Tritanopia (no blue cones) | #00383F | 0.072 |
| Achromatopsia (no color) | #2C2C2C | 0.096 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #002C5B
#002C5B
oklch(29.6% 0.096 254.5)
- #3F2700
#3F2700
oklch(29.6% 0.063 73.9)
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 #002C5B, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Marine #042E60 ΔE 0.011
- Prussian Blue #1D3557 ΔE 0.042
- Marine Blue #01386A ΔE 0.044
- Oxford Blue #1B263B ΔE 0.061
- Midnight Blue #191970 ΔE 0.061
- Midnight Green #073B4C ΔE 0.062
- Space Cadet #2B2D42 ΔE 0.064
- Dark Blue Grey #1F3B4D ΔE 0.068
Use #002C5B 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.