#152B5B
Closest named color: Marine (#042E60). oklch(30.1% 0.091 263.4), rgb(21, 43, 91).
Aa
White text reads best on this color (13.73:1).
About this color
#152B5B is a dark, moderately saturated blue. In OKLCH its lightness is 30%, its chroma 0.091 and its hue 263°. Its hue sits on the cool side of the wheel. The nearest named color is Marine (#042E60), ΔE 0.016 away. White text reads best on it, at 13.73:1.
| Hue family | Blues |
| Lightness | dark (30%) |
| Chroma | moderately saturated (0.091) |
| Temperature | cool |
| Nearest name | Marine (#042E60) |
| Black text | 1.52:1 |
| White text | 13.73:1 |
Values
| HEX | #152B5B |
| RGB | rgb(21, 43, 91) |
| HSL | hsl(221, 63%, 22%) |
| OKLCH | oklch(30.1% 0.091 263.4) |
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 #152B5B | 13.73:1 | AAA | Lc -103.2 | Preferred for body text |
| Black text on #152B5B | 1.52:1 | Fails | Lc 0.0 | Not readable |
| #152B5B text on white | 13.73:1 | AAA | Lc 100.0 | Preferred for body text |
| #152B5B text on black | 1.52:1 | 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
#F1F6FF
oklch(97.2% 0.013 262.4)
-
Step 100
100
#DFEAFF
oklch(93.5% 0.031 263.5)
-
Step 200
200
#C6DAFF
oklch(88.5% 0.056 262.8)
-
Step 300
300
#A1C1FF
oklch(81% 0.095 263.3)
-
Step 400
400
#6E9DFF
oklch(70.6% 0.153 263.6)
-
Step 500
500
#4781FF
oklch(63.2% 0.197 263.3)
-
Step 600
600
#2161FC
oklch(55.6% 0.239 263.5)
-
Step 700
700
#154FDC
oklch(49.2% 0.222 263.4)
-
Step 800
800
#1442B1
oklch(42.7% 0.183 263.5)
-
Step 900
900
#163A8C
oklch(37.8% 0.143 263.3)
-
Step 950
950 (this color)
#152B5B
oklch(30.1% 0.091 263.4)
#152B5B 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 | 0.018 |
| Deuteranopia (no green cones) | #002A5A | 0.018 |
| Tritanopia (no blue cones) | #00363E | 0.072 |
| Achromatopsia (no color) | #2D2D2D | 0.091 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #152B5B
#152B5B
oklch(30.1% 0.091 263.4)
- #3D2B00
#3D2B00
oklch(30.2% 0.062 83.8)
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 #152B5B, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Marine #042E60 ΔE 0.016
- Prussian Blue #1D3557 ΔE 0.036
- Marine Blue #01386A ΔE 0.044
- Space Cadet #2B2D42 ΔE 0.055
- Midnight Blue #191970 ΔE 0.058
- Oxford Blue #1B263B ΔE 0.058
- Gunmetal #293241 ΔE 0.063
- Midnight Green #073B4C ΔE 0.063
Use #152B5B 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.