#0B2D3A
Closest named color: Oxford Blue (#1B263B). oklch(28% 0.045 227.3), rgb(11, 45, 58).
Aa
White text reads best on this color (14.47:1).
About this color
#0B2D3A is a dark, muted teal or cyan. In OKLCH its lightness is 28%, its chroma 0.045 and its hue 227°. Its hue sits on the cool side of the wheel. The nearest named color is Oxford Blue (#1B263B), ΔE 0.029 away. White text reads best on it, at 14.47:1.
| Hue family | Teals and cyans |
| Lightness | dark (28%) |
| Chroma | muted (0.045) |
| Temperature | cool |
| Nearest name | Oxford Blue (#1B263B) |
| Black text | 1.45:1 |
| White text | 14.47:1 |
Values
| HEX | #0B2D3A |
| RGB | rgb(11, 45, 58) |
| HSL | hsl(197, 68%, 14%) |
| OKLCH | oklch(28% 0.045 227.3) |
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 #0B2D3A | 14.47:1 | AAA | Lc -104.0 | Preferred for body text |
| Black text on #0B2D3A | 1.45:1 | Fails | Lc 0.0 | Not readable |
| #0B2D3A text on white | 14.47:1 | AAA | Lc 101.1 | Preferred for body text |
| #0B2D3A text on black | 1.45:1 | 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
#F1F6F9
oklch(97% 0.007 233.6)
-
Step 100
100
#E0ECF2
oklch(93.6% 0.015 229)
-
Step 200
200
#C6DEE9
oklch(88.6% 0.03 227)
-
Step 300
300
#9DC8DC
oklch(80.9% 0.053 228)
-
Step 400
400
#63ABCA
oklch(70.6% 0.085 227.8)
-
Step 500
500
#2B96BD
oklch(63.1% 0.109 227.5)
-
Step 600
600
#007FA4
oklch(55.6% 0.108 227.1)
-
Step 700
700
#006B8A
oklch(49.2% 0.095 226.5)
-
Step 800
800
#005772
oklch(42.6% 0.083 227.6)
-
Step 900
900
#04495F
oklch(37.8% 0.071 226.8)
-
Step 950
950 (this color)
#0B2D3A
oklch(28% 0.045 227.3)
#0B2D3A 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) | #262C3B | 0.033 |
| Deuteranopia (no green cones) | #20273A | 0.030 |
| Tritanopia (no blue cones) | #003131 | 0.027 |
| Achromatopsia (no color) | #292929 | 0.045 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #0B2D3A
#0B2D3A
oklch(28% 0.045 227.3)
- #3B2115
#3B2115
oklch(27.9% 0.045 45.2)
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 #0B2D3A, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Oxford Blue #1B263B ΔE 0.029
- Dark #1B2431 ΔE 0.033
- Jet #212529 ΔE 0.040
- Gunmetal #293241 ΔE 0.044
- Space Cadet #2B2D42 ΔE 0.045
- Midnight Green #073B4C ΔE 0.051
- Dark Blue Grey #1F3B4D ΔE 0.060
- Prussian Blue #1D3557 ΔE 0.060
Use #0B2D3A 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.