#152B3D
Closest named color: Oxford Blue (#1B263B). oklch(28% 0.044 244.9), rgb(21, 43, 61).
Aa
White text reads best on this color (14.53:1).
About this color
#152B3D is a dark, muted blue. In OKLCH its lightness is 28%, its chroma 0.044 and its hue 245°. Its hue sits on the cool side of the wheel. The nearest named color is Oxford Blue (#1B263B), ΔE 0.017 away. White text reads best on it, at 14.53:1.
| Hue family | Blues |
| Lightness | dark (28%) |
| Chroma | muted (0.044) |
| Temperature | cool |
| Nearest name | Oxford Blue (#1B263B) |
| Black text | 1.44:1 |
| White text | 14.53:1 |
Values
| HEX | #152B3D |
| RGB | rgb(21, 43, 61) |
| HSL | hsl(207, 49%, 16%) |
| OKLCH | oklch(28% 0.044 244.9) |
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 #152B3D | 14.53:1 | AAA | Lc -104.1 | Preferred for body text |
| Black text on #152B3D | 1.44:1 | Fails | Lc 0.0 | Not readable |
| #152B3D text on white | 14.53:1 | AAA | Lc 101.2 | Preferred for body text |
| #152B3D text on black | 1.44:1 | 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
#F2F6FA
oklch(97.1% 0.007 247.9)
-
Step 100
100
#E2EBF3
oklch(93.6% 0.015 244.7)
-
Step 200
200
#CADCEB
oklch(88.6% 0.028 243.1)
-
Step 300
300
#A5C5E0
oklch(80.9% 0.052 243.9)
-
Step 400
400
#74A6D1
oklch(70.6% 0.083 245.3)
-
Step 500
500
#4D90C5
oklch(63.2% 0.105 244.5)
-
Step 600
600
#2D79B2
oklch(55.6% 0.115 244.9)
-
Step 700
700
#1F6599
oklch(49% 0.107 245.4)
-
Step 800
800
#1C537C
oklch(42.7% 0.089 244.9)
-
Step 900
900
#1E4564
oklch(37.8% 0.069 245.1)
-
Step 950
950 (this color)
#152B3D
oklch(28% 0.044 244.9)
#152B3D 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) | #232B3E | 0.020 |
| Deuteranopia (no green cones) | #1E273D | 0.017 |
| Tritanopia (no blue cones) | #002F31 | 0.035 |
| Achromatopsia (no color) | #292929 | 0.044 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #152B3D
#152B3D
oklch(28% 0.044 244.9)
- #382410
#382410
oklch(28% 0.044 64.3)
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 #152B3D, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Oxford Blue #1B263B ΔE 0.017
- Dark #1B2431 ΔE 0.028
- Space Cadet #2B2D42 ΔE 0.035
- Jet #212529 ΔE 0.039
- Gunmetal #293241 ΔE 0.039
- Midnight Green #073B4C ΔE 0.054
- Prussian Blue #1D3557 ΔE 0.055
- Dark Blue Grey #1F3B4D ΔE 0.059
Use #152B3D 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.