#0B4261
Closest named color: Dark Grey Blue (#29465B). oklch(36.2% 0.076 239.7), rgb(11, 66, 97).
Aa
White text reads best on this color (10.68:1).
About this color
#0B4261 is a dark, moderately saturated blue. In OKLCH its lightness is 36%, its chroma 0.076 and its hue 240°. Its hue sits on the cool side of the wheel. The nearest named color is Dark Grey Blue (#29465B), ΔE 0.032 away. White text reads best on it, at 10.68:1.
| Hue family | Blues |
| Lightness | dark (36%) |
| Chroma | moderately saturated (0.076) |
| Temperature | cool |
| Nearest name | Dark Grey Blue (#29465B) |
| Black text | 1.96:1 |
| White text | 10.68:1 |
Values
| HEX | #0B4261 |
| RGB | rgb(11, 66, 97) |
| HSL | hsl(202, 80%, 21%) |
| OKLCH | oklch(36.2% 0.076 239.7) |
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 #0B4261 | 10.68:1 | AAA | Lc -98.4 | Preferred for body text |
| Black text on #0B4261 | 1.96:1 | Fails | Lc 9.5 | Not readable |
| #0B4261 text on white | 10.68:1 | AAA | Lc 94.4 | Preferred for body text |
| #0B4261 text on black | 1.96:1 | Fails | Lc -8.2 | 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
#F1F6FA
oklch(97.1% 0.008 241.7)
-
Step 100
100
#E0ECF4
oklch(93.6% 0.017 236.7)
-
Step 200
200
#C7DDEC
oklch(88.6% 0.031 237.6)
-
Step 300
300
#A0C6E2
oklch(80.8% 0.057 240.3)
-
Step 400
400
#69A8D4
oklch(70.6% 0.092 240.3)
-
Step 500
500
#3A92C8
oklch(63.1% 0.116 239.5)
-
Step 600
600
#027BB5
oklch(55.6% 0.127 239.9)
-
Step 700
700
#006799
oklch(49% 0.112 240)
-
Step 800
800
#00557E
oklch(42.8% 0.097 239.2)
-
Step 900
900 (this color)
#0B4261
oklch(36.2% 0.076 239.7)
-
Step 950
950
#0D293B
oklch(26.9% 0.047 240.1)
#0B4261 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) | #334262 | 0.039 |
| Deuteranopia (no green cones) | #283B60 | 0.030 |
| Tritanopia (no blue cones) | #004A4D | 0.050 |
| Achromatopsia (no color) | #3E3E3E | 0.076 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #0B4261
#0B4261
oklch(36.2% 0.076 239.7)
- #5A320C
#5A320C
oklch(36.1% 0.076 59.1)
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 #0B4261, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Grey Blue #29465B ΔE 0.032
- Dark Blue Grey #1F3B4D ΔE 0.037
- Charcoal #264653 ΔE 0.037
- Marine Blue #01386A ΔE 0.039
- Midnight Green #073B4C ΔE 0.040
- Prussian Blue #1D3557 ΔE 0.041
- Twilight Blue #0A437A ΔE 0.043
- Dark Teal #014D4E ΔE 0.056
Use #0B4261 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.