#0A2045
Closest named color: Oxford Blue (#1B263B). oklch(25% 0.075 260.2), rgb(10, 32, 69).
Aa
White text reads best on this color (16.08:1).
About this color
#0A2045 is a dark, moderately saturated blue. In OKLCH its lightness is 25%, its chroma 0.075 and its hue 260°. Its hue sits on the cool side of the wheel. The nearest named color is Oxford Blue (#1B263B), ΔE 0.038 away. White text reads best on it, at 16.08:1.
| Hue family | Blues |
| Lightness | dark (25%) |
| Chroma | moderately saturated (0.075) |
| Temperature | cool |
| Nearest name | Oxford Blue (#1B263B) |
| Black text | 1.30:1 |
| White text | 16.08:1 |
Values
| HEX | #0A2045 |
| RGB | rgb(10, 32, 69) |
| HSL | hsl(218, 75%, 15%) |
| OKLCH | oklch(25% 0.075 260.2) |
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 #0A2045 | 16.08:1 | AAA | Lc -105.4 | Preferred for body text |
| Black text on #0A2045 | 1.30:1 | Fails | Lc 0.0 | Not readable |
| #0A2045 text on white | 16.08:1 | AAA | Lc 102.8 | Preferred for body text |
| #0A2045 text on black | 1.30:1 | 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
#F1F6FE
oklch(97.2% 0.012 259.8)
-
Step 100
100
#E0EBFC
oklch(93.7% 0.026 259)
-
Step 200
200
#C7DAFB
oklch(88.5% 0.05 261.5)
-
Step 300
300
#9FC2FB
oklch(80.9% 0.09 260)
-
Step 400
400
#6BA0F8
oklch(70.7% 0.141 260.1)
-
Step 500
500
#4285F5
oklch(63.1% 0.181 260.1)
-
Step 600
600
#216BE4
oklch(55.5% 0.198 260.2)
-
Step 700
700
#1458C6
oklch(49% 0.184 260.3)
-
Step 800
800
#1449A0
oklch(42.7% 0.152 260.2)
-
Step 900
900
#173E7F
oklch(37.6% 0.119 260.1)
-
Step 950
950 (this color)
#0A2045
oklch(25% 0.075 260.2)
#0A2045 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) | #0B2446 | 0.013 |
| Deuteranopia (no green cones) | #001F44 | 0.011 |
| Tritanopia (no blue cones) | #00292F | 0.059 |
| Achromatopsia (no color) | #212121 | 0.075 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #0A2045
#0A2045
oklch(25% 0.075 260.2)
- #2E1E00
#2E1E00
oklch(24.9% 0.051 80.2)
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 #0A2045, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Oxford Blue #1B263B ΔE 0.038
- Dark #1B2431 ΔE 0.048
- Navy Blue #001146 ΔE 0.048
- Rich Black #0D1B2A ΔE 0.052
- Marine #042E60 ΔE 0.062
- Dark Indigo #1F0954 ΔE 0.064
- Jet #212529 ΔE 0.067
- Space Cadet #2B2D42 ΔE 0.068
Use #0A2045 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.