#1C273D
Closest named color: Oxford Blue (#1B263B). oklch(27.4% 0.044 263.5), rgb(28, 39, 61).
Aa
White text reads best on this color (14.92:1).
About this color
#1C273D is a dark, muted blue. In OKLCH its lightness is 27%, its chroma 0.044 and its hue 263°. Its hue sits on the cool side of the wheel. The nearest named color is Oxford Blue (#1B263B), ΔE 0.005 away. White text reads best on it, at 14.92:1.
| Hue family | Blues |
| Lightness | dark (27%) |
| Chroma | muted (0.044) |
| Temperature | cool |
| Nearest name | Oxford Blue (#1B263B) |
| Black text | 1.40:1 |
| White text | 14.92:1 |
Values
| HEX | #1C273D |
| RGB | rgb(28, 39, 61) |
| HSL | hsl(220, 37%, 17%) |
| OKLCH | oklch(27.4% 0.044 263.5) |
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 #1C273D | 14.92:1 | AAA | Lc -104.6 | Preferred for body text |
| Black text on #1C273D | 1.40:1 | Fails | Lc 0.0 | Not readable |
| #1C273D text on white | 14.92:1 | AAA | Lc 101.7 | Preferred for body text |
| #1C273D text on black | 1.40:1 | 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
#CFD9ED
oklch(88.4% 0.03 264.4)
-
Step 300
300
#AFC1E3
oklch(80.9% 0.052 263.1)
-
Step 400
400
#86A1D5
oklch(70.8% 0.082 263.2)
-
Step 500
500
#6888CA
oklch(63.1% 0.107 263.9)
-
Step 600
600
#4F71B7
oklch(55.6% 0.116 263.5)
-
Step 700
700
#405E9D
oklch(49% 0.108 263.7)
-
Step 800
800
#354D80
oklch(42.6% 0.09 263.9)
-
Step 900
900
#2E4166
oklch(37.7% 0.068 262.8)
-
Step 950
950 (this color)
#1C273D
oklch(27.4% 0.044 263.5)
#1C273D 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) | #1F293E | 0.009 |
| Deuteranopia (no green cones) | #1B263D | 0.004 |
| Tritanopia (no blue cones) | #0F2C2F | 0.040 |
| Achromatopsia (no color) | #272727 | 0.044 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #1C273D
#1C273D
oklch(27.4% 0.044 263.5)
- #32250B
#32250B
oklch(27.4% 0.044 82.2)
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 #1C273D, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Oxford Blue #1B263B ΔE 0.005
- Dark #1B2431 ΔE 0.023
- Space Cadet #2B2D42 ΔE 0.034
- Jet #212529 ΔE 0.037
- Gunmetal #293241 ΔE 0.044
- Rich Black #0D1B2A ΔE 0.057
- Prussian Blue #1D3557 ΔE 0.059
- Marine #042E60 ΔE 0.065
Use #1C273D 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.