#0B4D74
Closest named color: Deep Sea Blue (#015482). oklch(40.3% 0.089 241.8), rgb(11, 77, 116).
Aa
White text reads best on this color (9.02:1).
About this color
#0B4D74 is a dark, moderately saturated blue. In OKLCH its lightness is 40%, its chroma 0.089 and its hue 242°. Its hue sits on the cool side of the wheel. The nearest named color is Deep Sea Blue (#015482), ΔE 0.028 away. White text reads best on it, at 9.02:1.
| Hue family | Blues |
| Lightness | dark (40%) |
| Chroma | moderately saturated (0.089) |
| Temperature | cool |
| Nearest name | Deep Sea Blue (#015482) |
| Black text | 2.32:1 |
| White text | 9.02:1 |
Values
| HEX | #0B4D74 |
| RGB | rgb(11, 77, 116) |
| HSL | hsl(202, 83%, 25%) |
| OKLCH | oklch(40.3% 0.089 241.8) |
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 #0B4D74 | 9.02:1 | AAA | Lc -94.7 | Preferred for body text |
| Black text on #0B4D74 | 2.32:1 | Fails | Lc 13.7 | Not readable |
| #0B4D74 text on white | 9.02:1 | AAA | Lc 90.3 | Preferred for body text |
| #0B4D74 text on black | 2.32:1 | Fails | Lc -12.0 | 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 800.
-
Step 50
50
#F1F6FA
oklch(97.1% 0.008 241.7)
-
Step 100
100
#E1EBF3
oklch(93.5% 0.015 241.8)
-
Step 200
200
#C9DCEB
oklch(88.5% 0.029 241.6)
-
Step 300
300
#A4C5E0
oklch(80.8% 0.052 243.1)
-
Step 400
400
#70A7D0
oklch(70.6% 0.084 241.6)
-
Step 500
500
#4791C4
oklch(63.1% 0.107 241.3)
-
Step 600
600
#247AB1
oklch(55.6% 0.116 242)
-
Step 700
700
#146798
oklch(49.2% 0.108 241.4)
-
Step 800
800 (this color)
#0B4D74
oklch(40.3% 0.089 241.8)
-
Step 900
900
#1A4663
oklch(37.8% 0.069 241)
-
Step 950
950
#11293A
oklch(27% 0.044 241.7)
#0B4D74 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) | #3A4E76 | 0.042 |
| Deuteranopia (no green cones) | #2C4573 | 0.032 |
| Tritanopia (no blue cones) | #00575B | 0.061 |
| Achromatopsia (no color) | #494949 | 0.090 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #0B4D74
#0B4D74
oklch(40.3% 0.089 241.8)
- #6A3B06
#6A3B06
oklch(40.2% 0.089 61.2)
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 #0B4D74, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Deep Sea Blue #015482 ΔE 0.028
- Light Navy #155084 ΔE 0.028
- Twilight Blue #0A437A ΔE 0.034
- Dark Grey Blue #29465B ΔE 0.045
- Dusk Blue #26538D ΔE 0.049
- Cobalt #1E488F ΔE 0.052
- Charcoal #264653 ΔE 0.056
- Light Navy Blue #2E5A88 ΔE 0.058
Use #0B4D74 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.