#152F59
Closest named color: Marine (#042E60). oklch(31% 0.082 259.6), rgb(21, 47, 89).
Aa
White text reads best on this color (13.26:1).
About this color
#152F59 is a dark, moderately saturated blue. In OKLCH its lightness is 31%, its chroma 0.082 and its hue 260°. Its hue sits on the cool side of the wheel. The nearest named color is Marine (#042E60), ΔE 0.018 away. White text reads best on it, at 13.26:1.
| Hue family | Blues |
| Lightness | dark (31%) |
| Chroma | moderately saturated (0.082) |
| Temperature | cool |
| Nearest name | Marine (#042E60) |
| Black text | 1.58:1 |
| White text | 13.26:1 |
Values
| HEX | #152F59 |
| RGB | rgb(21, 47, 89) |
| HSL | hsl(217, 62%, 22%) |
| OKLCH | oklch(31% 0.082 259.6) |
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 #152F59 | 13.26:1 | AAA | Lc -102.6 | Preferred for body text |
| Black text on #152F59 | 1.58:1 | Fails | Lc 0.0 | Not readable |
| #152F59 text on white | 13.26:1 | AAA | Lc 99.4 | Preferred for body text |
| #152F59 text on black | 1.58:1 | 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
#F0F6FE
oklch(97.1% 0.012 255.5)
-
Step 100
100
#DFEBFD
oklch(93.6% 0.028 258.4)
-
Step 200
200
#C4DBFE
oklch(88.6% 0.054 258.7)
-
Step 300
300
#9CC2FF
oklch(80.9% 0.096 259.7)
-
Step 400
400
#65A0FF
oklch(70.8% 0.153 259.5)
-
Step 500
500
#3684FF
oklch(63.2% 0.199 259.4)
-
Step 600
600
#0969EE
oklch(55.6% 0.216 259.5)
-
Step 700
700
#0057CD
oklch(49.1% 0.196 259.6)
-
Step 800
800
#0448A8
oklch(42.8% 0.166 259.5)
-
Step 900
900
#103D85
oklch(37.7% 0.13 259.9)
-
Step 950
950 (this color)
#152F59
oklch(31% 0.082 259.6)
#152F59 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) | #1A335B | 0.015 |
| Deuteranopia (no green cones) | #0E2D58 | 0.010 |
| Tritanopia (no blue cones) | #00393F | 0.066 |
| Achromatopsia (no color) | #303030 | 0.082 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #152F59
#152F59
oklch(31% 0.082 259.6)
- #412C00
#412C00
oklch(31% 0.064 80.3)
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 #152F59, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Marine #042E60 ΔE 0.018
- Prussian Blue #1D3557 ΔE 0.023
- Marine Blue #01386A ΔE 0.037
- Space Cadet #2B2D42 ΔE 0.049
- Midnight Green #073B4C ΔE 0.051
- Dark Blue Grey #1F3B4D ΔE 0.051
- Gunmetal #293241 ΔE 0.053
- Oxford Blue #1B263B ΔE 0.057
Use #152F59 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.