#0A343F
Closest named color: Midnight Green (#073B4C). oklch(30.3% 0.048 219.4), rgb(10, 52, 63).
Aa
White text reads best on this color (13.32:1).
About this color
#0A343F is a dark, muted teal or cyan. In OKLCH its lightness is 30%, its chroma 0.048 and its hue 219°. Its hue sits on the cool side of the wheel. The nearest named color is Midnight Green (#073B4C), ΔE 0.029 away. White text reads best on it, at 13.32:1.
| Hue family | Teals and cyans |
| Lightness | dark (30%) |
| Chroma | muted (0.048) |
| Temperature | cool |
| Nearest name | Midnight Green (#073B4C) |
| Black text | 1.57:1 |
| White text | 13.32:1 |
Values
| HEX | #0A343F |
| RGB | rgb(10, 52, 63) |
| HSL | hsl(192, 73%, 14%) |
| OKLCH | oklch(30.3% 0.048 219.4) |
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 #0A343F | 13.32:1 | AAA | Lc -102.7 | Preferred for body text |
| Black text on #0A343F | 1.57:1 | Fails | Lc 0.0 | Not readable |
| #0A343F text on white | 13.32:1 | AAA | Lc 99.5 | Preferred for body text |
| #0A343F text on black | 1.57:1 | 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
#DEEDF1
oklch(93.6% 0.017 215.5)
-
Step 200
200
#C3DFE8
oklch(88.6% 0.032 219.1)
-
Step 300
300
#97CADA
oklch(80.9% 0.058 219.1)
-
Step 400
400
#57AEC8
oklch(70.7% 0.092 220)
-
Step 500
500
#0099B8
oklch(63.1% 0.114 219)
-
Step 600
600
#00809B
oklch(55.5% 0.101 219.5)
-
Step 700
700
#006C83
oklch(49.1% 0.089 219.3)
-
Step 800
800
#00586C
oklch(42.6% 0.078 220.2)
-
Step 900
900
#004A5A
oklch(37.8% 0.068 218.5)
-
Step 950
950 (this color)
#0A343F
oklch(30.3% 0.048 219.4)
#0A343F 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) | #2D3240 | 0.041 |
| Deuteranopia (no green cones) | #262D3F | 0.036 |
| Tritanopia (no blue cones) | #003837 | 0.024 |
| Achromatopsia (no color) | #2F2F2F | 0.048 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #0A343F
#0A343F
oklch(30.3% 0.048 219.4)
- #43261C
#43261C
oklch(30.3% 0.048 39.7)
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 #0A343F, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Midnight Green #073B4C ΔE 0.029
- Gunmetal #293241 ΔE 0.035
- Dark Blue Grey #1F3B4D ΔE 0.039
- Space Cadet #2B2D42 ΔE 0.044
- Oxford Blue #1B263B ΔE 0.048
- Prussian Blue #1D3557 ΔE 0.049
- Dark #1B2431 ΔE 0.055
- Onyx #343A40 ΔE 0.057
Use #0A343F 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.