#1C2950
Closest named color: Marine (#042E60). oklch(29.2% 0.073 267.8), rgb(28, 41, 80).
Aa
White text reads best on this color (14.16:1).
About this color
#1C2950 is a dark, moderately saturated blue. In OKLCH its lightness is 29%, its chroma 0.073 and its hue 268°. Its hue sits on the cool side of the wheel. The nearest named color is Marine (#042E60), ΔE 0.035 away. White text reads best on it, at 14.16:1.
| Hue family | Blues |
| Lightness | dark (29%) |
| Chroma | moderately saturated (0.073) |
| Temperature | cool |
| Nearest name | Marine (#042E60) |
| Black text | 1.48:1 |
| White text | 14.16:1 |
Values
| HEX | #1C2950 |
| RGB | rgb(28, 41, 80) |
| HSL | hsl(225, 48%, 21%) |
| OKLCH | oklch(29.2% 0.073 267.8) |
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 #1C2950 | 14.16:1 | AAA | Lc -103.7 | Preferred for body text |
| Black text on #1C2950 | 1.48:1 | Fails | Lc 0.0 | Not readable |
| #1C2950 text on white | 14.16:1 | AAA | Lc 100.7 | Preferred for body text |
| #1C2950 text on black | 1.48:1 | 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
#F2F5FE
oklch(97% 0.012 271.3)
-
Step 100
100
#E2EAFB
oklch(93.6% 0.025 265.6)
-
Step 200
200
#CBD9FA
oklch(88.5% 0.048 267.2)
-
Step 300
300
#A8BFFA
oklch(80.9% 0.088 267.9)
-
Step 400
400
#7B9CF7
oklch(70.7% 0.139 267.7)
-
Step 500
500
#5B80F3
oklch(63.1% 0.177 267.7)
-
Step 600
600
#4366E2
oklch(55.6% 0.193 267.7)
-
Step 700
700
#3654C4
oklch(49.1% 0.178 267.8)
-
Step 800
800
#2C459F
oklch(42.6% 0.149 267.8)
-
Step 900
900
#273B7E
oklch(37.6% 0.116 267.9)
-
Step 950
950 (this color)
#1C2950
oklch(29.2% 0.073 267.8)
#1C2950 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) | #172D51 | 0.013 |
| Deuteranopia (no green cones) | #10294F | 0.014 |
| Tritanopia (no blue cones) | #003238 | 0.065 |
| Achromatopsia (no color) | #2B2B2B | 0.073 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #1C2950
#1C2950
oklch(29.2% 0.073 267.8)
- #382900
#382900
oklch(29% 0.059 87.2)
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 #1C2950, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Marine #042E60 ΔE 0.035
- Prussian Blue #1D3557 ΔE 0.038
- Oxford Blue #1B263B ΔE 0.039
- Space Cadet #2B2D42 ΔE 0.039
- Gunmetal #293241 ΔE 0.050
- Dark #1B2431 ΔE 0.057
- Marine Blue #01386A ΔE 0.060
- Dark Blue Grey #1F3B4D ΔE 0.061
Use #1C2950 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.