#0B5CAA
Closest named color: Mid Blue (#276AB3). oklch(47.6% 0.143 253.6), rgb(11, 92, 170).
Aa
White text reads best on this color (6.71:1).
About this color
#0B5CAA is a medium-dark, vivid blue. In OKLCH its lightness is 48%, its chroma 0.143 and its hue 254°. Its hue sits on the cool side of the wheel. The nearest named color is Mid Blue (#276AB3), ΔE 0.046 away. White text reads best on it, at 6.71:1.
| Hue family | Blues |
| Lightness | medium-dark (48%) |
| Chroma | vivid (0.143) |
| Temperature | cool |
| Nearest name | Mid Blue (#276AB3) |
| Black text | 3.12:1 |
| White text | 6.71:1 |
Values
| HEX | #0B5CAA |
| RGB | rgb(11, 92, 170) |
| HSL | hsl(209, 88%, 35%) |
| OKLCH | oklch(47.6% 0.143 253.6) |
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 #0B5CAA | 6.71:1 | AA | Lc -87.6 | Fine for body text |
| Black text on #0B5CAA | 3.12:1 | AA large text | Lc 21.5 | Dividers and decoration only |
| #0B5CAA text on white | 6.71:1 | AA | Lc 82.5 | Fine for body text |
| #0B5CAA text on black | 3.12:1 | AA large text | Lc -19.4 | 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
#F1F6FC
oklch(97.1% 0.01 252.8)
-
Step 100
100
#E1EBF7
oklch(93.6% 0.019 252.9)
-
Step 200
200
#C8DBF3
oklch(88.5% 0.039 254.3)
-
Step 300
300
#A2C4ED
oklch(81% 0.069 253.4)
-
Step 400
400
#6EA4E4
oklch(70.7% 0.11 253.4)
-
Step 500
500
#458BDD
oklch(63% 0.143 254)
-
Step 600
600
#2274CA
oklch(55.7% 0.154 253.5)
-
Step 700
700 (this color)
#0B5CAA
oklch(47.6% 0.143 253.6)
-
Step 800
800
#144F8E
oklch(42.7% 0.12 253.8)
-
Step 900
900
#194271
oklch(37.6% 0.093 254)
-
Step 950
950
#102742
oklch(27% 0.058 253.9)
#0B5CAA 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) | #3163AD | 0.033 |
| Deuteranopia (no green cones) | #0656A8 | 0.017 |
| Tritanopia (no blue cones) | #006F7A | 0.107 |
| Achromatopsia (no color) | #5C5C5C | 0.143 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #0B5CAA
#0B5CAA
oklch(47.6% 0.143 253.6)
- #7E5200
#7E5200
oklch(47.6% 0.101 73.5)
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 #0B5CAA, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Mid Blue #276AB3 ΔE 0.046
- Denim Blue #3B5B92 ΔE 0.049
- Dusk Blue #26538D ΔE 0.050
- Peacock Blue #016795 ΔE 0.051
- Light Navy Blue #2E5A88 ΔE 0.056
- Dusky Blue #475F94 ΔE 0.060
- French Blue #436BAD ΔE 0.064
- Denim #3B638C ΔE 0.065
Use #0B5CAA 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.