#152B47
Closest named color: Oxford Blue (#1B263B). oklch(28.6% 0.059 255.3), rgb(21, 43, 71).
Aa
White text reads best on this color (14.30:1).
About this color
#152B47 is a dark, muted blue. In OKLCH its lightness is 29%, its chroma 0.059 and its hue 255°. 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 14.30:1.
| Hue family | Blues |
| Lightness | dark (29%) |
| Chroma | muted (0.059) |
| Temperature | cool |
| Nearest name | Oxford Blue (#1B263B) |
| Black text | 1.46:1 |
| White text | 14.30:1 |
Values
| HEX | #152B47 |
| RGB | rgb(21, 43, 71) |
| HSL | hsl(214, 54%, 18%) |
| OKLCH | oklch(28.6% 0.059 255.3) |
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 #152B47 | 14.30:1 | AAA | Lc -103.9 | Preferred for body text |
| Black text on #152B47 | 1.46:1 | Fails | Lc 0.0 | Not readable |
| #152B47 text on white | 14.30:1 | AAA | Lc 100.9 | Preferred for body text |
| #152B47 text on black | 1.46:1 | 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
#F1F6FC
oklch(97.1% 0.01 252.8)
-
Step 100
100
#E1EBF8
oklch(93.6% 0.021 254.9)
-
Step 200
200
#C9DBF3
oklch(88.5% 0.038 255.6)
-
Step 300
300
#A3C3EE
oklch(80.9% 0.07 255.9)
-
Step 400
400
#70A3E5
oklch(70.7% 0.112 255.3)
-
Step 500
500
#498BDE
oklch(63.2% 0.143 255.3)
-
Step 600
600
#2873CB
oklch(55.6% 0.154 255)
-
Step 700
700
#1A60B0
oklch(49.2% 0.144 255.1)
-
Step 800
800
#194F8E
oklch(42.8% 0.118 254.9)
-
Step 900
900
#1B4272
oklch(37.8% 0.093 255.2)
-
Step 950
950 (this color)
#152B47
oklch(28.6% 0.059 255.3)
#152B47 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) | #1F2D48 | 0.015 |
| Deuteranopia (no green cones) | #182846 | 0.010 |
| Tritanopia (no blue cones) | #003135 | 0.048 |
| Achromatopsia (no color) | #2A2A2A | 0.059 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #152B47
#152B47
oklch(28.6% 0.059 255.3)
- #3B2501
#3B2501
oklch(28.5% 0.059 74.7)
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 #152B47, 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 0.034
- Gunmetal #293241 ΔE 0.041
- Dark #1B2431 ΔE 0.042
- Prussian Blue #1D3557 ΔE 0.042
- Marine #042E60 ΔE 0.045
- Midnight Green #073B4C ΔE 0.052
- Jet #212529 ΔE 0.055
Use #152B47 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.