#08303F
Closest named color: Oxford Blue (#1B263B). oklch(29% 0.05 228), rgb(8, 48, 63).
Aa
White text reads best on this color (13.95:1).
About this color
#08303F is a dark, muted teal or cyan. In OKLCH its lightness is 29%, its chroma 0.050 and its hue 228°. Its hue sits on the cool side of the wheel. The nearest named color is Oxford Blue (#1B263B), ΔE 0.036 away. White text reads best on it, at 13.95:1.
| Hue family | Teals and cyans |
| Lightness | dark (29%) |
| Chroma | muted (0.050) |
| Temperature | cool |
| Nearest name | Oxford Blue (#1B263B) |
| Black text | 1.50:1 |
| White text | 13.95:1 |
Values
| HEX | #08303F |
| RGB | rgb(8, 48, 63) |
| HSL | hsl(196, 77%, 14%) |
| OKLCH | oklch(29% 0.05 228) |
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 #08303F | 13.95:1 | AAA | Lc -103.4 | Preferred for body text |
| Black text on #08303F | 1.50:1 | Fails | Lc 0.0 | Not readable |
| #08303F text on white | 13.95:1 | AAA | Lc 100.4 | Preferred for body text |
| #08303F text on black | 1.50:1 | 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
#F0F7FA
oklch(97.2% 0.008 225.1)
-
Step 100
100
#DFECF3
oklch(93.5% 0.017 230.9)
-
Step 200
200
#C3DEEB
oklch(88.5% 0.034 228.4)
-
Step 300
300
#98C9DF
oklch(80.9% 0.06 227.3)
-
Step 400
400
#59ACCF
oklch(70.6% 0.095 227.9)
-
Step 500
500
#0697C3
oklch(63.2% 0.122 227.7)
-
Step 600
600
#007FA5
oklch(55.7% 0.108 227.8)
-
Step 700
700
#006A8B
oklch(49% 0.096 228.3)
-
Step 800
800
#005773
oklch(42.7% 0.084 228.5)
-
Step 900
900
#004960
oklch(37.8% 0.073 227.3)
-
Step 950
950 (this color)
#08303F
oklch(29% 0.05 228)
#08303F 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) | #282F40 | 0.036 |
| Deuteranopia (no green cones) | #212A3F | 0.031 |
| Tritanopia (no blue cones) | #003435 | 0.027 |
| Achromatopsia (no color) | #2C2C2C | 0.050 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #08303F
#08303F
oklch(29% 0.05 228)
- #402314
#402314
oklch(29.1% 0.051 47.3)
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 #08303F, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Oxford Blue #1B263B ΔE 0.036
- Gunmetal #293241 ΔE 0.039
- Midnight Green #073B4C ΔE 0.040
- Space Cadet #2B2D42 ΔE 0.043
- Dark #1B2431 ΔE 0.044
- Dark Blue Grey #1F3B4D ΔE 0.049
- Jet #212529 ΔE 0.050
- Prussian Blue #1D3557 ΔE 0.051
Use #08303F 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.