#0A2947
Closest named color: Oxford Blue (#1B263B). oklch(27.6% 0.066 251), rgb(10, 41, 71).
Aa
White text reads best on this color (14.77:1).
About this color
#0A2947 is a dark, muted blue. In OKLCH its lightness is 28%, its chroma 0.066 and its hue 251°. Its hue sits on the cool side of the wheel. The nearest named color is Oxford Blue (#1B263B), ΔE 0.027 away. White text reads best on it, at 14.77:1.
| Hue family | Blues |
| Lightness | dark (28%) |
| Chroma | muted (0.066) |
| Temperature | cool |
| Nearest name | Oxford Blue (#1B263B) |
| Black text | 1.42:1 |
| White text | 14.77:1 |
Values
| HEX | #0A2947 |
| RGB | rgb(10, 41, 71) |
| HSL | hsl(210, 75%, 16%) |
| OKLCH | oklch(27.6% 0.066 251) |
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 #0A2947 | 14.77:1 | AAA | Lc -104.3 | Preferred for body text |
| Black text on #0A2947 | 1.42:1 | Fails | Lc 0.0 | Not readable |
| #0A2947 text on white | 14.77:1 | AAA | Lc 101.4 | Preferred for body text |
| #0A2947 text on black | 1.42:1 | 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
#F0F6FC
oklch(97% 0.01 247.9)
-
Step 100
100
#DFEBF9
oklch(93.5% 0.023 252.2)
-
Step 200
200
#C5DCF6
oklch(88.6% 0.044 251.5)
-
Step 300
300
#9BC5F2
oklch(80.9% 0.078 250.5)
-
Step 400
400
#61A5EC
oklch(70.7% 0.126 250.9)
-
Step 500
500
#2D8CE6
oklch(63% 0.161 251.2)
-
Step 600
600
#0075CD
oklch(55.6% 0.161 250.9)
-
Step 700
700
#0062AE
oklch(49.1% 0.143 251.1)
-
Step 800
800
#005090
oklch(42.7% 0.125 251.1)
-
Step 900
900
#064376
oklch(37.7% 0.104 250.5)
-
Step 950
950 (this color)
#0A2947
oklch(27.6% 0.066 251)
#0A2947 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) | #1B2B48 | 0.020 |
| Deuteranopia (no green cones) | #122546 | 0.014 |
| Tritanopia (no blue cones) | #003034 | 0.049 |
| Achromatopsia (no color) | #282828 | 0.066 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #0A2947
#0A2947
oklch(27.6% 0.066 251)
- #3A2200
#3A2200
oklch(27.6% 0.06 70.9)
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 #0A2947, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Oxford Blue #1B263B ΔE 0.027
- Dark #1B2431 ΔE 0.043
- Marine #042E60 ΔE 0.046
- Space Cadet #2B2D42 ΔE 0.047
- Prussian Blue #1D3557 ΔE 0.052
- Gunmetal #293241 ΔE 0.054
- Jet #212529 ΔE 0.058
- Midnight Green #073B4C ΔE 0.060
Use #0A2947 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.