#152C4C
Closest named color: Oxford Blue (#1B263B). oklch(29.2% 0.066 257), rgb(21, 44, 76).
Aa
White text reads best on this color (14.03:1).
About this color
#152C4C is a dark, muted blue. In OKLCH its lightness is 29%, its chroma 0.066 and its hue 257°. Its hue sits on the cool side of the wheel. The nearest named color is Oxford Blue (#1B263B), ΔE 0.033 away. White text reads best on it, at 14.03:1.
| Hue family | Blues |
| Lightness | dark (29%) |
| Chroma | muted (0.066) |
| Temperature | cool |
| Nearest name | Oxford Blue (#1B263B) |
| Black text | 1.49:1 |
| White text | 14.03:1 |
Values
| HEX | #152C4C |
| RGB | rgb(21, 44, 76) |
| HSL | hsl(215, 57%, 19%) |
| OKLCH | oklch(29.2% 0.066 257) |
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 #152C4C | 14.03:1 | AAA | Lc -103.6 | Preferred for body text |
| Black text on #152C4C | 1.49:1 | Fails | Lc 0.0 | Not readable |
| #152C4C text on white | 14.03:1 | AAA | Lc 100.5 | Preferred for body text |
| #152C4C text on black | 1.49:1 | 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
#F1F6FD
oklch(97.1% 0.011 256.7)
-
Step 100
100
#E1EBF9
oklch(93.7% 0.022 256.7)
-
Step 200
200
#C7DBF6
oklch(88.5% 0.043 255.9)
-
Step 300
300
#A1C3F3
oklch(80.9% 0.078 257)
-
Step 400
400
#6DA2ED
oklch(70.7% 0.124 257.2)
-
Step 500
500
#4489E7
oklch(63.1% 0.158 256.9)
-
Step 600
600
#2270D5
oklch(55.5% 0.172 257)
-
Step 700
700
#145DB9
oklch(49% 0.161 257.2)
-
Step 800
800
#144D96
oklch(42.8% 0.133 256.9)
-
Step 900
900
#184177
oklch(37.8% 0.103 256.6)
-
Step 950
950 (this color)
#152C4C
oklch(29.2% 0.066 257)
#152C4C 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) | #1E2E4D | 0.014 |
| Deuteranopia (no green cones) | #16294B | 0.010 |
| Tritanopia (no blue cones) | #003338 | 0.052 |
| Achromatopsia (no color) | #2C2C2C | 0.066 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #152C4C
#152C4C
oklch(29.2% 0.066 257)
- #3D2700
#3D2700
oklch(29.3% 0.061 76.4)
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 #152C4C, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Oxford Blue #1B263B ΔE 0.033
- Prussian Blue #1D3557 ΔE 0.035
- Space Cadet #2B2D42 ΔE 0.036
- Marine #042E60 ΔE 0.037
- Gunmetal #293241 ΔE 0.043
- Midnight Green #073B4C ΔE 0.050
- Dark #1B2431 ΔE 0.051
- Dark Blue Grey #1F3B4D ΔE 0.053
Use #152C4C 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.