#0B4050
Closest named color: Midnight Green (#073B4C). oklch(34.7% 0.059 223.3), rgb(11, 64, 80).
Aa
White text reads best on this color (11.26:1).
About this color
#0B4050 is a dark, muted teal or cyan. In OKLCH its lightness is 35%, its chroma 0.059 and its hue 223°. Its hue sits on the cool side of the wheel. The nearest named color is Midnight Green (#073B4C), ΔE 0.018 away. White text reads best on it, at 11.26:1.
| Hue family | Teals and cyans |
| Lightness | dark (35%) |
| Chroma | muted (0.059) |
| Temperature | cool |
| Nearest name | Midnight Green (#073B4C) |
| Black text | 1.86:1 |
| White text | 11.26:1 |
Values
| HEX | #0B4050 |
| RGB | rgb(11, 64, 80) |
| HSL | hsl(194, 76%, 18%) |
| OKLCH | oklch(34.7% 0.059 223.3) |
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 #0B4050 | 11.26:1 | AAA | Lc -99.5 | Preferred for body text |
| Black text on #0B4050 | 1.86:1 | Fails | Lc 8.2 | Not readable |
| #0B4050 text on white | 11.26:1 | AAA | Lc 95.7 | Preferred for body text |
| #0B4050 text on black | 1.86:1 | 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
#F1F6F8
oklch(97% 0.006 223.5)
-
Step 100
100
#E1ECF0
oklch(93.6% 0.013 221.4)
-
Step 200
200
#C9DDE5
oklch(88.5% 0.024 223.7)
-
Step 300
300
#A2C7D6
oklch(80.8% 0.045 224.5)
-
Step 400
400
#6EABC1
oklch(70.8% 0.071 222.8)
-
Step 500
500
#4295B2
oklch(63.1% 0.091 224.1)
-
Step 600
600
#167F9D
oklch(55.5% 0.098 223.3)
-
Step 700
700
#016B87
oklch(49% 0.092 224.1)
-
Step 800
800
#0C586D
oklch(42.8% 0.075 222.5)
-
Step 900
900 (this color)
#0B4050
oklch(34.7% 0.059 223.3)
-
Step 950
950
#0F2A34
oklch(26.9% 0.038 225.1)
#0B4050 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) | #373E51 | 0.047 |
| Deuteranopia (no green cones) | #2E3850 | 0.041 |
| Tritanopia (no blue cones) | #004545 | 0.030 |
| Achromatopsia (no color) | #3B3B3B | 0.059 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #0B4050
#0B4050
oklch(34.7% 0.059 223.3)
- #532F20
#532F20
oklch(34.7% 0.058 43.1)
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 #0B4050, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Midnight Green #073B4C ΔE 0.018
- Dark Blue Grey #1F3B4D ΔE 0.020
- Charcoal #264653 ΔE 0.033
- Dark Grey Blue #29465B ΔE 0.039
- Prussian Blue #1D3557 ΔE 0.042
- Dark Teal #014D4E ΔE 0.045
- Onyx #343A40 ΔE 0.047
- Gunmetal #293241 ΔE 0.050
Use #0B4050 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.