#152C39
Closest named color: Oxford Blue (#1B263B). oklch(28.1% 0.038 235.1), rgb(21, 44, 57).
Aa
White text reads best on this color (14.47:1).
About this color
#152C39 is a dark, muted blue. In OKLCH its lightness is 28%, its chroma 0.038 and its hue 235°. Its hue sits on the cool side of the wheel. The nearest named color is Oxford Blue (#1B263B), ΔE 0.023 away. White text reads best on it, at 14.47:1.
| Hue family | Blues |
| Lightness | dark (28%) |
| Chroma | muted (0.038) |
| Temperature | cool |
| Nearest name | Oxford Blue (#1B263B) |
| Black text | 1.45:1 |
| White text | 14.47:1 |
Values
| HEX | #152C39 |
| RGB | rgb(21, 44, 57) |
| HSL | hsl(202, 46%, 15%) |
| OKLCH | oklch(28.1% 0.038 235.1) |
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 #152C39 | 14.47:1 | AAA | Lc -104.1 | Preferred for body text |
| Black text on #152C39 | 1.45:1 | Fails | Lc 0.0 | Not readable |
| #152C39 text on white | 14.47:1 | AAA | Lc 101.2 | Preferred for body text |
| #152C39 text on black | 1.45:1 | 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
#F2F6F9
oklch(97.1% 0.006 239.8)
-
Step 100
100
#E2EBF1
oklch(93.5% 0.013 236.6)
-
Step 200
200
#CADCE7
oklch(88.4% 0.025 234.5)
-
Step 300
300
#A6C6DA
oklch(81% 0.045 235.5)
-
Step 400
400
#74A8C7
oklch(70.7% 0.071 235.3)
-
Step 500
500
#4D92B9
oklch(63.1% 0.091 235.5)
-
Step 600
600
#2C7CA5
oklch(55.7% 0.099 235.1)
-
Step 700
700
#1D688D
oklch(49% 0.092 235.1)
-
Step 800
800
#1B5573
oklch(42.7% 0.077 235.5)
-
Step 900
900
#1D465D
oklch(37.6% 0.06 236.1)
-
Step 950
950 (this color)
#152C39
oklch(28.1% 0.038 235.1)
#152C39 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) | #262C3A | 0.024 |
| Deuteranopia (no green cones) | #212839 | 0.020 |
| Tritanopia (no blue cones) | #012F30 | 0.029 |
| Achromatopsia (no color) | #292929 | 0.038 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #152C39
#152C39
oklch(28.1% 0.038 235.1)
- #382417
#382417
oklch(28.2% 0.038 53.6)
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 #152C39, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Oxford Blue #1B263B ΔE 0.023
- Dark #1B2431 ΔE 0.028
- Jet #212529 ΔE 0.034
- Space Cadet #2B2D42 ΔE 0.038
- Gunmetal #293241 ΔE 0.039
- Midnight Green #073B4C ΔE 0.053
- Dark Blue Grey #1F3B4D ΔE 0.059
- Prussian Blue #1D3557 ΔE 0.059
Use #152C39 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.