#1D263C
Closest named color: Oxford Blue (#1B263B). oklch(27.1% 0.043 266.6), rgb(29, 38, 60).
Aa
White text reads best on this color (15.05:1).
About this color
#1D263C is a dark, muted blue. In OKLCH its lightness is 27%, its chroma 0.043 and its hue 267°. Its hue sits on the cool side of the wheel. The nearest named color is Oxford Blue (#1B263B), ΔE 0.004 away. White text reads best on it, at 15.05:1.
| Hue family | Blues |
| Lightness | dark (27%) |
| Chroma | muted (0.043) |
| Temperature | cool |
| Nearest name | Oxford Blue (#1B263B) |
| Black text | 1.39:1 |
| White text | 15.05:1 |
Values
| HEX | #1D263C |
| RGB | rgb(29, 38, 60) |
| HSL | hsl(223, 35%, 17%) |
| OKLCH | oklch(27.1% 0.043 266.6) |
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 #1D263C | 15.05:1 | AAA | Lc -104.7 | Preferred for body text |
| Black text on #1D263C | 1.39:1 | Fails | Lc 0.0 | Not readable |
| #1D263C text on white | 15.05:1 | AAA | Lc 101.9 | Preferred for body text |
| #1D263C text on black | 1.39:1 | 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
#F3F5FA
oklch(97% 0.007 268.5)
-
Step 100
100
#E5EAF4
oklch(93.6% 0.015 264.5)
-
Step 200
200
#D0D9ED
oklch(88.5% 0.029 266.4)
-
Step 300
300
#B1C0E3
oklch(80.8% 0.052 266.9)
-
Step 400
400
#89A0D4
oklch(70.8% 0.081 265.9)
-
Step 500
500
#6C87C9
oklch(63% 0.105 266.5)
-
Step 600
600
#5570B6
oklch(55.6% 0.114 266.8)
-
Step 700
700
#455D9C
oklch(49% 0.105 266.8)
-
Step 800
800
#394D7F
oklch(42.8% 0.087 266.3)
-
Step 900
900
#314066
oklch(37.7% 0.068 266.8)
-
Step 950
950 (this color)
#1D263C
oklch(27.1% 0.043 266.6)
#1D263C 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) | #1E283D | 0.007 |
| Deuteranopia (no green cones) | #1B253C | 0.005 |
| Tritanopia (no blue cones) | #122B2E | 0.039 |
| Achromatopsia (no color) | #262626 | 0.043 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #1D263C
#1D263C
oklch(27.1% 0.043 266.6)
- #30250B
#30250B
oklch(27.1% 0.043 86.1)
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 #1D263C, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Oxford Blue #1B263B ΔE 0.004
- Dark #1B2431 ΔE 0.021
- Space Cadet #2B2D42 ΔE 0.035
- Jet #212529 ΔE 0.035
- Gunmetal #293241 ΔE 0.046
- Rich Black #0D1B2A ΔE 0.055
- Prussian Blue #1D3557 ΔE 0.062
- Marine #042E60 ΔE 0.068
Use #1D263C 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.