#0B4E70
Closest named color: Deep Sea Blue (#015482). oklch(40.3% 0.084 237.8), rgb(11, 78, 112).
Aa
White text reads best on this color (8.98:1).
About this color
#0B4E70 is a dark, moderately saturated blue. In OKLCH its lightness is 40%, its chroma 0.084 and its hue 238°. Its hue sits on the cool side of the wheel. The nearest named color is Deep Sea Blue (#015482), ΔE 0.032 away. White text reads best on it, at 8.98:1.
| Hue family | Blues |
| Lightness | dark (40%) |
| Chroma | moderately saturated (0.084) |
| Temperature | cool |
| Nearest name | Deep Sea Blue (#015482) |
| Black text | 2.33:1 |
| White text | 8.98:1 |
Values
| HEX | #0B4E70 |
| RGB | rgb(11, 78, 112) |
| HSL | hsl(200, 82%, 24%) |
| OKLCH | oklch(40.3% 0.084 237.8) |
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 #0B4E70 | 8.98:1 | AAA | Lc -94.7 | Preferred for body text |
| Black text on #0B4E70 | 2.33:1 | Fails | Lc 13.8 | Not readable |
| #0B4E70 text on white | 8.98:1 | AAA | Lc 90.2 | Preferred for body text |
| #0B4E70 text on black | 2.33:1 | Fails | Lc -12.1 | 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 800.
-
Step 50
50
#F2F6F9
oklch(97.1% 0.006 239.8)
-
Step 100
100
#E2EBF2
oklch(93.5% 0.014 241)
-
Step 200
200
#C9DCE9
oklch(88.4% 0.027 237.6)
-
Step 300
300
#A4C6DD
oklch(80.9% 0.049 237.8)
-
Step 400
400
#71A8CC
oklch(70.7% 0.078 238.1)
-
Step 500
500
#4892BF
oklch(63.2% 0.1 237.9)
-
Step 600
600
#247BAB
oklch(55.5% 0.109 238.1)
-
Step 700
700
#146893
oklch(49.2% 0.101 237.7)
-
Step 800
800 (this color)
#0B4E70
oklch(40.3% 0.084 237.8)
-
Step 900
900
#1A4660
oklch(37.6% 0.065 238)
-
Step 950
950
#112938
oklch(26.9% 0.041 238.3)
#0B4E70 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) | #3E4E72 | 0.047 |
| Deuteranopia (no green cones) | #30456F | 0.037 |
| Tritanopia (no blue cones) | #00575A | 0.054 |
| Achromatopsia (no color) | #494949 | 0.084 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #0B4E70
#0B4E70
oklch(40.3% 0.084 237.8)
- #693B12
#693B12
oklch(40.1% 0.084 57.9)
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 #0B4E70, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Deep Sea Blue #015482 ΔE 0.032
- Light Navy #155084 ΔE 0.035
- Dark Grey Blue #29465B ΔE 0.040
- Twilight Blue #0A437A ΔE 0.041
- Deep Teal #00555A ΔE 0.050
- Charcoal #264653 ΔE 0.050
- Dusk Blue #26538D ΔE 0.054
- Petrol #005F6A ΔE 0.058
Use #0B4E70 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.