#0B709F
Closest named color: Ocean Blue (#03719C). oklch(51.7% 0.11 237.2), rgb(11, 112, 159).
Aa
White text reads best on this color (5.47:1).
About this color
#0B709F is a medium-dark, moderately saturated blue. In OKLCH its lightness is 52%, its chroma 0.110 and its hue 237°. Its hue sits on the cool side of the wheel. The nearest named color is Ocean Blue (#03719C), ΔE 0.007 away. White text reads best on it, at 5.47:1.
| Hue family | Blues |
| Lightness | medium-dark (52%) |
| Chroma | moderately saturated (0.110) |
| Temperature | cool |
| Nearest name | Ocean Blue (#03719C) |
| Black text | 3.83:1 |
| White text | 5.47:1 |
Values
| HEX | #0B709F |
| RGB | rgb(11, 112, 159) |
| HSL | hsl(199, 87%, 33%) |
| OKLCH | oklch(51.7% 0.11 237.2) |
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 #0B709F | 5.47:1 | AA | Lc -82.2 | Fine for body text |
| Black text on #0B709F | 3.83:1 | AA large text | Lc 27.2 | Dividers and decoration only |
| #0B709F text on white | 5.47:1 | AA | Lc 76.8 | Fine for body text |
| #0B709F text on black | 3.83:1 | AA large text | Lc -24.9 | Dividers and decoration only |
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 700.
-
Step 50
50
#F1F6FA
oklch(97.1% 0.008 241.7)
-
Step 100
100
#E1ECF3
oklch(93.7% 0.015 235.4)
-
Step 200
200
#C8DDEB
oklch(88.6% 0.03 236.9)
-
Step 300
300
#A1C6DF
oklch(80.8% 0.053 237.9)
-
Step 400
400
#6BA9CF
oklch(70.7% 0.085 236.6)
-
Step 500
500
#3E93C3
oklch(63.2% 0.109 236.9)
-
Step 600
600
#0D7CAF
oklch(55.6% 0.118 236.9)
-
Step 700
700 (this color)
#0B709F
oklch(51.7% 0.11 237.2)
-
Step 800
800
#06557A
oklch(42.6% 0.091 237.2)
-
Step 900
900
#134762
oklch(37.8% 0.07 236.1)
-
Step 950
950
#0E293A
oklch(26.9% 0.046 239.3)
#0B709F 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) | #5970A1 | 0.061 |
| Deuteranopia (no green cones) | #46649E | 0.048 |
| Tritanopia (no blue cones) | #007C80 | 0.070 |
| Achromatopsia (no color) | #696969 | 0.110 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #0B709F
#0B709F
oklch(51.7% 0.11 237.2)
- #96551C
#96551C
oklch(51.6% 0.11 57.1)
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 #0B709F, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Ocean Blue #03719C ΔE 0.007
- Sea Blue #047495 ΔE 0.023
- Muted Blue #3B719F ΔE 0.028
- Peacock Blue #016795 ΔE 0.029
- Flat Blue #3C73A8 ΔE 0.035
- Nice Blue #107AB0 ΔE 0.036
- Mid Blue #276AB3 ΔE 0.041
- Ocean #017B92 ΔE 0.044
Use #0B709F 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.