#15293C
Closest named color: Oxford Blue (#1B263B). oklch(27.4% 0.044 248.5), rgb(21, 41, 60).
Aa
White text reads best on this color (14.84:1).
About this color
#15293C is a dark, muted blue. In OKLCH its lightness is 27%, its chroma 0.044 and its hue 249°. Its hue sits on the cool side of the wheel. The nearest named color is Oxford Blue (#1B263B), ΔE 0.012 away. White text reads best on it, at 14.84:1.
| Hue family | Blues |
| Lightness | dark (27%) |
| Chroma | muted (0.044) |
| Temperature | cool |
| Nearest name | Oxford Blue (#1B263B) |
| Black text | 1.41:1 |
| White text | 14.84:1 |
Values
| HEX | #15293C |
| RGB | rgb(21, 41, 60) |
| HSL | hsl(209, 48%, 16%) |
| OKLCH | oklch(27.4% 0.044 248.5) |
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 #15293C | 14.84:1 | AAA | Lc -104.4 | Preferred for body text |
| Black text on #15293C | 1.41:1 | Fails | Lc 0.0 | Not readable |
| #15293C text on white | 14.84:1 | AAA | Lc 101.6 | Preferred for body text |
| #15293C text on black | 1.41:1 | 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
#E2EBF4
oklch(93.6% 0.016 248)
-
Step 200
200
#CBDBEC
oklch(88.5% 0.029 249.8)
-
Step 300
300
#A7C4E1
oklch(80.8% 0.052 248.5)
-
Step 400
400
#77A5D3
oklch(70.7% 0.084 249.1)
-
Step 500
500
#528EC7
oklch(63.1% 0.107 248.7)
-
Step 600
600
#3477B4
oklch(55.5% 0.117 248.9)
-
Step 700
700
#26649B
oklch(49.1% 0.109 248.8)
-
Step 800
800
#21527D
oklch(42.7% 0.089 248.1)
-
Step 900
900
#214465
oklch(37.7% 0.07 248.9)
-
Step 950
950 (this color)
#15293C
oklch(27.4% 0.044 248.5)
#15293C 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) | #212A3D | 0.018 |
| Deuteranopia (no green cones) | #1C263C | 0.013 |
| Tritanopia (no blue cones) | #002D30 | 0.036 |
| Achromatopsia (no color) | #272727 | 0.044 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #15293C
#15293C
oklch(27.4% 0.044 248.5)
- #35230D
#35230D
oklch(27.3% 0.044 69.6)
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 #15293C, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Oxford Blue #1B263B ΔE 0.012
- Dark #1B2431 ΔE 0.023
- Jet #212529 ΔE 0.037
- Space Cadet #2B2D42 ΔE 0.038
- Gunmetal #293241 ΔE 0.045
- Rich Black #0D1B2A ΔE 0.057
- Prussian Blue #1D3557 ΔE 0.059
- Midnight Green #073B4C ΔE 0.061
Use #15293C 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.