#152C5C
Closest named color: Marine (#042E60). oklch(30.5% 0.091 262.9), rgb(21, 44, 92).
Aa
White text reads best on this color (13.57:1).
About this color
#152C5C 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 0.014 away. White text reads best on it, at 13.57:1.
| Hue family | Blues |
| Lightness | dark (30%) |
| Chroma | moderately saturated (0.091) |
| Temperature | cool |
| Nearest name | Marine (#042E60) |
| Black text | 1.54:1 |
| White text | 13.57:1 |
Values
| HEX | #152C5C |
| RGB | rgb(21, 44, 92) |
| HSL | hsl(221, 63%, 22%) |
| OKLCH | oklch(30.5% 0.091 262.9) |
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 #152C5C | 13.57:1 | AAA | Lc -103.0 | Preferred for body text |
| Black text on #152C5C | 1.54:1 | Fails | Lc 0.0 | Not readable |
| #152C5C text on white | 13.57:1 | AAA | Lc 99.8 | Preferred for body text |
| #152C5C text on black | 1.54:1 | 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
#A0C1FF
oklch(80.9% 0.095 262.7)
-
Step 400
400
#6D9EFF
oklch(70.8% 0.152 262.8)
-
Step 500
500
#4581FF
oklch(63.1% 0.198 262.9)
-
Step 600
600
#1C62FC
oklch(55.7% 0.239 262.8)
-
Step 700
700
#104FDC
oklch(49.1% 0.223 262.9)
-
Step 800
800
#1042B1
oklch(42.6% 0.184 262.9)
-
Step 900
900
#143A8C
oklch(37.7% 0.143 262.8)
-
Step 950
950 (this color)
#152C5C
oklch(30.5% 0.091 262.9)
#152C5C 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) | #11315E | 0.015 |
| Deuteranopia (no green cones) | #002B5B | 0.018 |
| Tritanopia (no blue cones) | #00373F | 0.072 |
| Achromatopsia (no color) | #2E2E2E | 0.091 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #152C5C
#152C5C
oklch(30.5% 0.091 262.9)
- #3E2B00
#3E2B00
oklch(30.4% 0.062 82.4)
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 #152C5C, 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 0.034
- Marine Blue #01386A ΔE 0.041
- Space Cadet #2B2D42 ΔE 0.056
- Midnight Blue #191970 ΔE 0.059
- Oxford Blue #1B263B ΔE 0.060
- Midnight Green #073B4C ΔE 0.062
- Gunmetal #293241 ΔE 0.062
Use #152C5C 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.