#0B2F3B
Closest named color: Oxford Blue (#1B263B). oklch(28.6% 0.045 224.2), rgb(11, 47, 59).
Aa
White text reads best on this color (14.15:1).
About this color
#0B2F3B is a dark, muted teal or cyan. In OKLCH its lightness is 29%, its chroma 0.045 and its hue 224°. Its hue sits on the cool side of the wheel. The nearest named color is Oxford Blue (#1B263B), ΔE 0.034 away. White text reads best on it, at 14.15:1.
| Hue family | Teals and cyans |
| Lightness | dark (29%) |
| Chroma | muted (0.045) |
| Temperature | cool |
| Nearest name | Oxford Blue (#1B263B) |
| Black text | 1.48:1 |
| White text | 14.15:1 |
Values
| HEX | #0B2F3B |
| RGB | rgb(11, 47, 59) |
| HSL | hsl(195, 69%, 14%) |
| OKLCH | oklch(28.6% 0.045 224.2) |
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 #0B2F3B | 14.15:1 | AAA | Lc -103.7 | Preferred for body text |
| Black text on #0B2F3B | 1.48:1 | Fails | Lc 0.0 | Not readable |
| #0B2F3B text on white | 14.15:1 | AAA | Lc 100.7 | Preferred for body text |
| #0B2F3B 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
#F1F7F9
oklch(97.2% 0.007 219.6)
-
Step 100
100
#DFECF2
oklch(93.5% 0.016 227)
-
Step 200
200
#C5DEE8
oklch(88.5% 0.03 223.8)
-
Step 300
300
#9CC9DB
oklch(81% 0.054 224.4)
-
Step 400
400
#60ACC8
oklch(70.6% 0.086 224.1)
-
Step 500
500
#2397BB
oklch(63.1% 0.11 224.4)
-
Step 600
600
#0080A1
oklch(55.7% 0.105 224.1)
-
Step 700
700
#006B87
oklch(49% 0.092 224)
-
Step 800
800
#00586F
oklch(42.7% 0.08 223.4)
-
Step 900
900
#00495D
oklch(37.7% 0.071 223.8)
-
Step 950
950 (this color)
#0B2F3B
oklch(28.6% 0.045 224.2)
#0B2F3B 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) | #282E3C | 0.035 |
| Deuteranopia (no green cones) | #22293B | 0.032 |
| Tritanopia (no blue cones) | #003333 | 0.025 |
| Achromatopsia (no color) | #2B2B2B | 0.046 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #0B2F3B
#0B2F3B
oklch(28.6% 0.045 224.2)
- #3D2317
#3D2317
oklch(28.7% 0.045 45.3)
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 #0B2F3B, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Oxford Blue #1B263B ΔE 0.034
- Dark #1B2431 ΔE 0.039
- Gunmetal #293241 ΔE 0.040
- Space Cadet #2B2D42 ΔE 0.044
- Jet #212529 ΔE 0.044
- Midnight Green #073B4C ΔE 0.045
- Dark Blue Grey #1F3B4D ΔE 0.054
- Prussian Blue #1D3557 ΔE 0.057
Use #0B2F3B 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.