#1C204B
Closest named color: Oxford Blue (#1B263B). oklch(26.7% 0.079 275.7), rgb(28, 32, 75).
Aa
White text reads best on this color (15.46:1).
About this color
#1C204B is a dark, moderately saturated blue. In OKLCH its lightness is 27%, its chroma 0.079 and its hue 276°. Its hue sits on the cool side of the wheel. The nearest named color is Oxford Blue (#1B263B), ΔE 0.039 away. White text reads best on it, at 15.46:1.
| Hue family | Blues |
| Lightness | dark (27%) |
| Chroma | moderately saturated (0.079) |
| Temperature | cool |
| Nearest name | Oxford Blue (#1B263B) |
| Black text | 1.35:1 |
| White text | 15.46:1 |
Values
| HEX | #1C204B |
| RGB | rgb(28, 32, 75) |
| HSL | hsl(235, 46%, 20%) |
| OKLCH | oklch(26.7% 0.079 275.7) |
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 #1C204B | 15.46:1 | AAA | Lc -104.9 | Preferred for body text |
| Black text on #1C204B | 1.35:1 | Fails | Lc 0.0 | Not readable |
| #1C204B text on white | 15.46:1 | AAA | Lc 102.2 | Preferred for body text |
| #1C204B text on black | 1.35:1 | 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
#F3F5FE
oklch(97.1% 0.012 276.1)
-
Step 100
100
#E4E9FC
oklch(93.6% 0.026 274.1)
-
Step 200
200
#CFD7FC
oklch(88.5% 0.052 275.7)
-
Step 300
300
#AFBCFD
oklch(80.9% 0.093 275.4)
-
Step 400
400
#8896FC
oklch(70.6% 0.149 276)
-
Step 500
500
#6D78FA
oklch(63.1% 0.191 275.8)
-
Step 600
600
#585DE9
oklch(55.6% 0.207 275.8)
-
Step 700
700
#484BCA
oklch(49% 0.192 275.6)
-
Step 800
800
#3B3FA4
oklch(42.8% 0.16 275.6)
-
Step 900
900
#323782
oklch(37.8% 0.124 275.8)
-
Step 950
950 (this color)
#1C204B
oklch(26.7% 0.079 275.7)
#1C204B 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) | #08264D | 0.027 |
| Deuteranopia (no green cones) | #02224A | 0.030 |
| Tritanopia (no blue cones) | #032A32 | 0.069 |
| Achromatopsia (no color) | #242424 | 0.079 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #1C204B
#1C204B
oklch(26.7% 0.079 275.7)
- #2E2500
#2E2500
oklch(26.7% 0.055 95.2)
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 #1C204B, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Oxford Blue #1B263B ΔE 0.039
- Dark #1B2431 ΔE 0.054
- Dark Indigo #1F0954 ΔE 0.054
- Marine #042E60 ΔE 0.054
- Space Cadet #2B2D42 ΔE 0.056
- Navy Blue #001146 ΔE 0.064
- Prussian Blue #1D3557 ΔE 0.066
- Midnight Blue #191970 ΔE 0.069
Use #1C204B 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.