#152559
Closest named color: Marine (#042E60). oklch(28.5% 0.096 267.1), rgb(21, 37, 89).
Aa
White text reads best on this color (14.57:1).
About this color
#152559 is a dark, moderately saturated blue. In OKLCH its lightness is 29%, its chroma 0.096 and its hue 267°. Its hue sits on the cool side of the wheel. The nearest named color is Marine (#042E60), ΔE 0.029 away. White text reads best on it, at 14.57:1.
| Hue family | Blues |
| Lightness | dark (29%) |
| Chroma | moderately saturated (0.096) |
| Temperature | cool |
| Nearest name | Marine (#042E60) |
| Black text | 1.44:1 |
| White text | 14.57:1 |
Values
| HEX | #152559 |
| RGB | rgb(21, 37, 89) |
| HSL | hsl(226, 62%, 22%) |
| OKLCH | oklch(28.5% 0.096 267.1) |
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 #152559 | 14.57:1 | AAA | Lc -104.0 | Preferred for body text |
| Black text on #152559 | 1.44:1 | Fails | Lc 0.0 | Not readable |
| #152559 text on white | 14.57:1 | AAA | Lc 101.1 | Preferred for body text |
| #152559 text on black | 1.44:1 | 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
#F1F5FF
oklch(97% 0.014 268.5)
-
Step 100
100
#E1EAFF
oklch(93.7% 0.03 267.2)
-
Step 200
200
#C9D9FF
oklch(88.6% 0.055 267.2)
-
Step 300
300
#A5BFFF
oklch(80.9% 0.095 267.2)
-
Step 400
400
#769BFF
oklch(70.7% 0.152 267.2)
-
Step 500
500
#547EFF
oklch(63.1% 0.197 267)
-
Step 600
600
#365CFF
oklch(55.6% 0.244 267.2)
-
Step 700
700
#2848E3
oklch(49.2% 0.235 267)
-
Step 800
800
#213CB7
oklch(42.6% 0.195 267.1)
-
Step 900
900
#1E3690
oklch(37.6% 0.151 267.1)
-
Step 950
950 (this color)
#152559
oklch(28.5% 0.096 267.1)
#152559 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) | #002C5B | 0.024 |
| Deuteranopia (no green cones) | #002658 | 0.019 |
| Tritanopia (no blue cones) | #00323B | 0.078 |
| Achromatopsia (no color) | #292929 | 0.096 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #152559
#152559
oklch(28.5% 0.096 267.1)
- #372800
#372800
oklch(28.7% 0.059 86.8)
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 #152559, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Marine #042E60 ΔE 0.029
- Midnight Blue #191970 ΔE 0.049
- Prussian Blue #1D3557 ΔE 0.053
- Oxford Blue #1B263B ΔE 0.056
- Marine Blue #01386A ΔE 0.060
- Space Cadet #2B2D42 ΔE 0.063
- Dark Indigo #1F0954 ΔE 0.064
- Darkblue #030764 ΔE 0.073
Use #152559 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.