#152F3D
Closest named color: Oxford Blue (#1B263B). oklch(29.1% 0.041 234.1), rgb(21, 47, 61).
Aa
White text reads best on this color (13.94:1).
About this color
#152F3D is a dark, muted blue. In OKLCH its lightness is 29%, its chroma 0.041 and its hue 234°. Its hue sits on the cool side of the wheel. The nearest named color is Oxford Blue (#1B263B), ΔE 0.030 away. White text reads best on it, at 13.94:1.
| Hue family | Blues |
| Lightness | dark (29%) |
| Chroma | muted (0.041) |
| Temperature | cool |
| Nearest name | Oxford Blue (#1B263B) |
| Black text | 1.50:1 |
| White text | 13.94:1 |
Values
| HEX | #152F3D |
| RGB | rgb(21, 47, 61) |
| HSL | hsl(201, 49%, 16%) |
| OKLCH | oklch(29.1% 0.041 234.1) |
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 #152F3D | 13.94:1 | AAA | Lc -103.5 | Preferred for body text |
| Black text on #152F3D | 1.50:1 | Fails | Lc 0.0 | Not readable |
| #152F3D text on white | 13.94:1 | AAA | Lc 100.5 | Preferred for body text |
| #152F3D text on black | 1.50:1 | 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
#F1F6F9
oklch(97% 0.007 233.6)
-
Step 100
100
#E1ECF2
oklch(93.7% 0.014 231.2)
-
Step 200
200
#C9DDE9
oklch(88.6% 0.027 234)
-
Step 300
300
#A3C6DC
oklch(80.8% 0.049 235.8)
-
Step 400
400
#6FA9CA
oklch(70.7% 0.077 234.4)
-
Step 500
500
#4493BC
oklch(63.1% 0.099 234)
-
Step 600
600
#1C7DA8
oklch(55.7% 0.107 233.5)
-
Step 700
700
#096991
oklch(49.1% 0.101 234.3)
-
Step 800
800
#105675
oklch(42.8% 0.082 233.5)
-
Step 900
900
#17475F
oklch(37.7% 0.065 234.2)
-
Step 950
950 (this color)
#152F3D
oklch(29.1% 0.041 234.1)
#152F3D 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) | #282E3E | 0.026 |
| Deuteranopia (no green cones) | #232A3D | 0.024 |
| Tritanopia (no blue cones) | #003334 | 0.030 |
| Achromatopsia (no color) | #2C2C2C | 0.041 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #152F3D
#152F3D
oklch(29.1% 0.041 234.1)
- #3C2617
#3C2617
oklch(29.2% 0.042 54.6)
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 #152F3D, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Oxford Blue #1B263B ΔE 0.030
- Gunmetal #293241 ΔE 0.031
- Space Cadet #2B2D42 ΔE 0.034
- Dark #1B2431 ΔE 0.039
- Midnight Green #073B4C ΔE 0.042
- Jet #212529 ΔE 0.043
- Dark Blue Grey #1F3B4D ΔE 0.048
- Prussian Blue #1D3557 ΔE 0.050
Use #152F3D 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.