#152D43
Closest named color: Oxford Blue (#1B263B). oklch(28.9% 0.051 248), rgb(21, 45, 67).
Aa
White text reads best on this color (14.11:1).
About this color
#152D43 is a dark, muted blue. In OKLCH its lightness is 29%, its chroma 0.051 and its hue 248°. Its hue sits on the cool side of the wheel. The nearest named color is Oxford Blue (#1B263B), ΔE 0.025 away. White text reads best on it, at 14.11:1.
| Hue family | Blues |
| Lightness | dark (29%) |
| Chroma | muted (0.051) |
| Temperature | cool |
| Nearest name | Oxford Blue (#1B263B) |
| Black text | 1.48:1 |
| White text | 14.11:1 |
Values
| HEX | #152D43 |
| RGB | rgb(21, 45, 67) |
| HSL | hsl(209, 52%, 17%) |
| OKLCH | oklch(28.9% 0.051 248) |
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 #152D43 | 14.11:1 | AAA | Lc -103.7 | Preferred for body text |
| Black text on #152D43 | 1.48:1 | Fails | Lc 0.0 | Not readable |
| #152D43 text on white | 14.11:1 | AAA | Lc 100.7 | Preferred for body text |
| #152D43 text on black | 1.48:1 | 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
#F1F6FB
oklch(97.1% 0.009 247.9)
-
Step 100
100
#E1EBF5
oklch(93.5% 0.017 248)
-
Step 200
200
#C9DCEF
oklch(88.6% 0.033 248.2)
-
Step 300
300
#A3C5E6
oklch(81% 0.059 247.8)
-
Step 400
400
#6FA6DA
oklch(70.7% 0.096 248)
-
Step 500
500
#468FCF
oklch(63.2% 0.121 247.5)
-
Step 600
600
#2277BD
oklch(55.5% 0.134 248.4)
-
Step 700
700
#1364A3
oklch(49.1% 0.124 248.3)
-
Step 800
800
#145284
oklch(42.7% 0.103 248)
-
Step 900
900
#19446A
oklch(37.7% 0.081 248.4)
-
Step 950
950 (this color)
#152D43
oklch(28.9% 0.051 248)
#152D43 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) | #242E44 | 0.021 |
| Deuteranopia (no green cones) | #1D2943 | 0.016 |
| Tritanopia (no blue cones) | #003235 | 0.040 |
| Achromatopsia (no color) | #2B2B2B | 0.051 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #152D43
#152D43
oklch(28.9% 0.051 248)
- #3C260C
#3C260C
oklch(29% 0.051 67.7)
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 #152D43, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Oxford Blue #1B263B ΔE 0.025
- Space Cadet #2B2D42 ΔE 0.031
- Gunmetal #293241 ΔE 0.034
- Dark #1B2431 ΔE 0.039
- Prussian Blue #1D3557 ΔE 0.043
- Midnight Green #073B4C ΔE 0.046
- Jet #212529 ΔE 0.049
- Dark Blue Grey #1F3B4D ΔE 0.050
Use #152D43 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.