#152D55
Closest named color: Marine (#042E60). oklch(30.2% 0.078 260), rgb(21, 45, 85).
Aa
White text reads best on this color (13.65:1).
About this color
#152D55 is a dark, moderately saturated blue. In OKLCH its lightness is 30%, its chroma 0.078 and its hue 260°. Its hue sits on the cool side of the wheel. The nearest named color is Marine (#042E60), ΔE 0.022 away. White text reads best on it, at 13.65:1.
| Hue family | Blues |
| Lightness | dark (30%) |
| Chroma | moderately saturated (0.078) |
| Temperature | cool |
| Nearest name | Marine (#042E60) |
| Black text | 1.53:1 |
| White text | 13.65:1 |
Values
| HEX | #152D55 |
| RGB | rgb(21, 45, 85) |
| HSL | hsl(218, 60%, 21%) |
| OKLCH | oklch(30.2% 0.078 260) |
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 #152D55 | 13.65:1 | AAA | Lc -103.1 | Preferred for body text |
| Black text on #152D55 | 1.53:1 | Fails | Lc 0.0 | Not readable |
| #152D55 text on white | 13.65:1 | AAA | Lc 100.0 | Preferred for body text |
| #152D55 text on black | 1.53:1 | 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
#F1F6FE
oklch(97.2% 0.012 259.8)
-
Step 100
100
#E0EBFC
oklch(93.7% 0.026 259)
-
Step 200
200
#C6DAFC
oklch(88.4% 0.052 261.1)
-
Step 300
300
#9EC2FD
oklch(80.9% 0.093 260.1)
-
Step 400
400
#68A0FC
oklch(70.8% 0.148 259.9)
-
Step 500
500
#3D84FA
oklch(63.1% 0.19 260)
-
Step 600
600
#196AE9
oklch(55.6% 0.207 260)
-
Step 700
700
#0A57CB
oklch(49.1% 0.193 260.1)
-
Step 800
800
#0E48A4
oklch(42.7% 0.16 260.1)
-
Step 900
900
#143E82
oklch(37.8% 0.124 259.8)
-
Step 950
950 (this color)
#152D55
oklch(30.2% 0.078 260)
#152D55 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) | #1A3157 | 0.015 |
| Deuteranopia (no green cones) | #0F2B54 | 0.010 |
| Tritanopia (no blue cones) | #00363C | 0.063 |
| Achromatopsia (no color) | #2E2E2E | 0.079 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #152D55
#152D55
oklch(30.2% 0.078 260)
- #3E2A00
#3E2A00
oklch(30.1% 0.062 80.6)
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 #152D55, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Marine #042E60 ΔE 0.022
- Prussian Blue #1D3557 ΔE 0.028
- Space Cadet #2B2D42 ΔE 0.045
- Marine Blue #01386A ΔE 0.046
- Oxford Blue #1B263B ΔE 0.049
- Gunmetal #293241 ΔE 0.051
- Midnight Green #073B4C ΔE 0.052
- Dark Blue Grey #1F3B4D ΔE 0.054
Use #152D55 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.