#0B5DCC
Closest named color: Azul (#1D5DEC). oklch(50.4% 0.187 258.9), rgb(11, 93, 204).
Aa
White text reads best on this color (6.08:1).
About this color
#0B5DCC is a medium-dark, vivid blue. In OKLCH its lightness is 50%, its chroma 0.187 and its hue 259°. Its hue sits on the cool side of the wheel. The nearest named color is Azul (#1D5DEC), ΔE 0.050 away. White text reads best on it, at 6.08:1.
| Hue family | Blues |
| Lightness | medium-dark (50%) |
| Chroma | vivid (0.187) |
| Temperature | cool |
| Nearest name | Azul (#1D5DEC) |
| Black text | 3.45:1 |
| White text | 6.08:1 |
Values
| HEX | #0B5DCC |
| RGB | rgb(11, 93, 204) |
| HSL | hsl(215, 90%, 42%) |
| OKLCH | oklch(50.4% 0.187 258.9) |
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 #0B5DCC | 6.08:1 | AA | Lc -84.8 | Fine for body text |
| Black text on #0B5DCC | 3.45:1 | AA large text | Lc 24.5 | Dividers and decoration only |
| #0B5DCC text on white | 6.08:1 | AA | Lc 79.6 | Fine for body text |
| #0B5DCC text on black | 3.45:1 | AA large text | Lc -22.2 | 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
#F1F6FE
oklch(97.2% 0.012 259.8)
-
Step 100
100
#E0EBFC
oklch(93.7% 0.026 259)
-
Step 200
200
#C6DBFB
oklch(88.6% 0.05 258.7)
-
Step 300
300
#9DC2FB
oklch(80.8% 0.091 258.9)
-
Step 400
400
#67A0FA
oklch(70.6% 0.146 259.2)
-
Step 500
500
#3C85F7
oklch(63% 0.186 259.2)
-
Step 600
600
#156CE6
oklch(55.7% 0.201 258.9)
-
Step 700
700 (this color)
#0B5DCC
oklch(50.4% 0.187 258.9)
-
Step 800
800
#0B49A1
oklch(42.6% 0.155 259.1)
-
Step 900
900
#133F80
oklch(37.8% 0.12 258.7)
-
Step 950
950
#0D254B
oklch(27% 0.077 259.3)
#0B5DCC 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) | #006BD0 | 0.036 |
| Deuteranopia (no green cones) | #005ACA | 0.009 |
| Tritanopia (no blue cones) | #00798B | 0.142 |
| Achromatopsia (no color) | #626262 | 0.187 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #0B5DCC
#0B5DCC
oklch(50.4% 0.187 258.9)
- #845C00
#845C00
oklch(50.4% 0.105 79.1)
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 #0B5DCC, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Azul #1D5DEC ΔE 0.050
- Warm Blue #4B57DB ΔE 0.055
- Mid Blue #276AB3 ΔE 0.058
- Royal Blue #4169E1 ΔE 0.061
- Blue Blue #2242C7 ΔE 0.062
- Cerulean Blue #056EEE ΔE 0.066
- Neon Blue #4361EE ΔE 0.068
- Bright Blue #0165FC ΔE 0.076
Use #0B5DCC 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.