#152D5C
Closest named color: Marine (#042E60). oklch(30.7% 0.09 262.2), rgb(21, 45, 92).
Aa
White text reads best on this color (13.44:1).
About this color
#152D5C is a dark, moderately saturated blue. In OKLCH its lightness is 31%, its chroma 0.090 and its hue 262°. Its hue sits on the cool side of the wheel. The nearest named color is Marine (#042E60), ΔE 0.014 away. White text reads best on it, at 13.44:1.
| Hue family | Blues |
| Lightness | dark (31%) |
| Chroma | moderately saturated (0.090) |
| Temperature | cool |
| Nearest name | Marine (#042E60) |
| Black text | 1.56:1 |
| White text | 13.44:1 |
Values
| HEX | #152D5C |
| RGB | rgb(21, 45, 92) |
| HSL | hsl(220, 63%, 22%) |
| OKLCH | oklch(30.7% 0.09 262.2) |
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 #152D5C | 13.44:1 | AAA | Lc -102.8 | Preferred for body text |
| Black text on #152D5C | 1.56:1 | Fails | Lc 0.0 | Not readable |
| #152D5C text on white | 13.44:1 | AAA | Lc 99.6 | Preferred for body text |
| #152D5C text on black | 1.56:1 | 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
#DFEAFF
oklch(93.5% 0.031 263.5)
-
Step 200
200
#C5DAFF
oklch(88.5% 0.056 261.8)
-
Step 300
300
#9FC1FF
oklch(80.9% 0.096 262.2)
-
Step 400
400
#6B9EFF
oklch(70.7% 0.153 262.2)
-
Step 500
500
#4282FF
oklch(63.2% 0.198 262)
-
Step 600
600
#1763FA
oklch(55.6% 0.236 262.2)
-
Step 700
700
#0951DA
oklch(49.2% 0.219 262.1)
-
Step 800
800
#0C43B0
oklch(42.7% 0.182 262.2)
-
Step 900
900
#133B8B
oklch(37.8% 0.141 262.1)
-
Step 950
950 (this color)
#152D5C
oklch(30.7% 0.09 262.2)
#152D5C 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) | #14325E | 0.015 |
| Deuteranopia (no green cones) | #032C5B | 0.015 |
| Tritanopia (no blue cones) | #003840 | 0.071 |
| Achromatopsia (no color) | #2F2F2F | 0.090 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #152D5C
#152D5C
oklch(30.7% 0.09 262.2)
- #3F2C00
#3F2C00
oklch(30.7% 0.063 82.9)
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 #152D5C, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Marine #042E60 ΔE 0.014
- Prussian Blue #1D3557 ΔE 0.031
- Marine Blue #01386A ΔE 0.038
- Space Cadet #2B2D42 ΔE 0.055
- Midnight Green #073B4C ΔE 0.059
- Dark Blue Grey #1F3B4D ΔE 0.060
- Gunmetal #293241 ΔE 0.060
- Oxford Blue #1B263B ΔE 0.060
Use #152D5C 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.