#0B3D4E
Closest named color: Midnight Green (#073B4C). oklch(33.7% 0.058 226), rgb(11, 61, 78).
Aa
White text reads best on this color (11.72:1).
About this color
#0B3D4E is a dark, muted teal or cyan. In OKLCH its lightness is 34%, its chroma 0.058 and its hue 226°. Its hue sits on the cool side of the wheel. The nearest named color is Midnight Green (#073B4C), ΔE 0.008 away. White text reads best on it, at 11.72:1.
| Hue family | Teals and cyans |
| Lightness | dark (34%) |
| Chroma | muted (0.058) |
| Temperature | cool |
| Nearest name | Midnight Green (#073B4C) |
| Black text | 1.79:1 |
| White text | 11.72:1 |
Values
| HEX | #0B3D4E |
| RGB | rgb(11, 61, 78) |
| HSL | hsl(195, 75%, 17%) |
| OKLCH | oklch(33.7% 0.058 226) |
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 #0B3D4E | 11.72:1 | AAA | Lc -100.3 | Preferred for body text |
| Black text on #0B3D4E | 1.79:1 | Fails | Lc 0.0 | Not readable |
| #0B3D4E text on white | 11.72:1 | AAA | Lc 96.6 | Preferred for body text |
| #0B3D4E text on black | 1.79:1 | 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 900.
-
Step 50
50
#F2F6F8
oklch(97.1% 0.005 228.8)
-
Step 100
100
#E2ECF0
oklch(93.7% 0.012 223.5)
-
Step 200
200
#C9DDE6
oklch(88.5% 0.025 226.5)
-
Step 300
300
#A4C7D6
oklch(80.9% 0.043 225.7)
-
Step 400
400
#70AAC2
oklch(70.7% 0.07 226)
-
Step 500
500
#4695B3
oklch(63.2% 0.089 225.8)
-
Step 600
600
#1F7E9F
oklch(55.5% 0.097 226.7)
-
Step 700
700
#0D6B88
oklch(49.2% 0.09 225.8)
-
Step 800
800
#12576E
oklch(42.7% 0.075 225.8)
-
Step 900
900 (this color)
#0B3D4E
oklch(33.7% 0.058 226)
-
Step 950
950
#102A34
oklch(27% 0.037 225.8)
#0B3D4E 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) | #343C4F | 0.044 |
| Deuteranopia (no green cones) | #2B354E | 0.039 |
| Tritanopia (no blue cones) | #004243 | 0.030 |
| Achromatopsia (no color) | #383838 | 0.058 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #0B3D4E
#0B3D4E
oklch(33.7% 0.058 226)
- #502D1C
#502D1C
oklch(33.8% 0.059 46.1)
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 #0B3D4E, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Midnight Green #073B4C ΔE 0.008
- Dark Blue Grey #1F3B4D ΔE 0.016
- Prussian Blue #1D3557 ΔE 0.036
- Charcoal #264653 ΔE 0.041
- Gunmetal #293241 ΔE 0.043
- Onyx #343A40 ΔE 0.047
- Dark Grey Blue #29465B ΔE 0.047
- Dark Teal #014D4E ΔE 0.055
Use #0B3D4E 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.