#0A313F
Closest named color: Gunmetal (#293241). oklch(29.4% 0.049 226.5), rgb(10, 49, 63).
Aa
White text reads best on this color (13.77:1).
About this color
#0A313F is a dark, muted teal or cyan. In OKLCH its lightness is 29%, its chroma 0.049 and its hue 226°. Its hue sits on the cool side of the wheel. The nearest named color is Gunmetal (#293241), ΔE 0.037 away. White text reads best on it, at 13.77:1.
| Hue family | Teals and cyans |
| Lightness | dark (29%) |
| Chroma | muted (0.049) |
| Temperature | cool |
| Nearest name | Gunmetal (#293241) |
| Black text | 1.52:1 |
| White text | 13.77:1 |
Values
| HEX | #0A313F |
| RGB | rgb(10, 49, 63) |
| HSL | hsl(196, 73%, 14%) |
| OKLCH | oklch(29.4% 0.049 226.5) |
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 #0A313F | 13.77:1 | AAA | Lc -103.3 | Preferred for body text |
| Black text on #0A313F | 1.52:1 | Fails | Lc 0.0 | Not readable |
| #0A313F text on white | 13.77:1 | AAA | Lc 100.1 | Preferred for body text |
| #0A313F text on black | 1.52:1 | 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
#F0F7F9
oklch(97.1% 0.008 216.6)
-
Step 100
100
#DFECF3
oklch(93.5% 0.017 230.9)
-
Step 200
200
#C4DEEA
oklch(88.5% 0.032 227.3)
-
Step 300
300
#99C9DE
oklch(80.9% 0.058 226.6)
-
Step 400
400
#5BACCD
oklch(70.6% 0.093 226.9)
-
Step 500
500
#0F97C0
oklch(63.1% 0.118 226.3)
-
Step 600
600
#007FA3
oklch(55.6% 0.107 226.4)
-
Step 700
700
#006B8A
oklch(49.2% 0.095 226.5)
-
Step 800
800
#005771
oklch(42.6% 0.082 226.6)
-
Step 900
900
#00495F
oklch(37.8% 0.072 226.2)
-
Step 950
950 (this color)
#0A313F
oklch(29.4% 0.049 226.5)
#0A313F 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) | #293040 | 0.036 |
| Deuteranopia (no green cones) | #222B3F | 0.031 |
| Tritanopia (no blue cones) | #003536 | 0.026 |
| Achromatopsia (no color) | #2D2D2D | 0.049 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #0A313F
#0A313F
oklch(29.4% 0.049 226.5)
- #402416
#402416
oklch(29.3% 0.049 46.8)
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 #0A313F, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Gunmetal #293241 ΔE 0.037
- Midnight Green #073B4C ΔE 0.037
- Oxford Blue #1B263B ΔE 0.038
- Space Cadet #2B2D42 ΔE 0.042
- Dark #1B2431 ΔE 0.046
- Dark Blue Grey #1F3B4D ΔE 0.046
- Prussian Blue #1D3557 ΔE 0.049
- Jet #212529 ΔE 0.051
Use #0A313F 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.