#0B5DD3
Closest named color: Azul (#1D5DEC). oklch(51% 0.196 259.6), rgb(11, 93, 211).
Aa
White text reads best on this color (5.96:1).
About this color
#0B5DD3 is a medium-dark, vivid blue. In OKLCH its lightness is 51%, its chroma 0.196 and its hue 260°. Its hue sits on the cool side of the wheel. The nearest named color is Azul (#1D5DEC), ΔE 0.040 away. White text reads best on it, at 5.96:1.
| Hue family | Blues |
| Lightness | medium-dark (51%) |
| Chroma | vivid (0.196) |
| Temperature | cool |
| Nearest name | Azul (#1D5DEC) |
| Black text | 3.52:1 |
| White text | 5.96:1 |
Values
| HEX | #0B5DD3 |
| RGB | rgb(11, 93, 211) |
| HSL | hsl(215, 90%, 44%) |
| OKLCH | oklch(51% 0.196 259.6) |
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 #0B5DD3 | 5.96:1 | AA | Lc -84.2 | Fine for body text |
| Black text on #0B5DD3 | 3.52:1 | AA large text | Lc 25.1 | Dividers and decoration only |
| #0B5DD3 text on white | 5.96:1 | AA | Lc 79.0 | Fine for body text |
| #0B5DD3 text on black | 3.52:1 | AA large text | Lc -22.8 | 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
#F0F6FE
oklch(97.1% 0.012 255.5)
-
Step 100
100
#DFEBFD
oklch(93.6% 0.028 258.4)
-
Step 200
200
#C5DBFD
oklch(88.6% 0.053 259)
-
Step 300
300
#9CC2FE
oklch(80.9% 0.095 259.4)
-
Step 400
400
#66A0FE
oklch(70.8% 0.151 259.6)
-
Step 500
500
#3A84FC
oklch(63.1% 0.194 259.7)
-
Step 600
600
#126AEB
oklch(55.6% 0.21 259.6)
-
Step 700
700 (this color)
#0B5DD3
oklch(51% 0.196 259.6)
-
Step 800
800
#0848A5
oklch(42.6% 0.162 259.6)
-
Step 900
900
#123E83
oklch(37.8% 0.126 259.5)
-
Step 950
950
#0C254D
oklch(27.1% 0.08 259.5)
#0B5DD3 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) | #006CD7 | 0.038 |
| Deuteranopia (no green cones) | #005BD1 | 0.007 |
| Tritanopia (no blue cones) | #007B8F | 0.148 |
| Achromatopsia (no color) | #636363 | 0.196 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #0B5DD3
#0B5DD3
oklch(51% 0.196 259.6)
- #865E00
#865E00
oklch(51.1% 0.106 79.7)
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 #0B5DD3, closest first.
No curated palette has a color within ΔE 0.04 of #0B5DD3.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Azul #1D5DEC ΔE 0.040
- Warm Blue #4B57DB ΔE 0.051
- Royal Blue #4169E1 ΔE 0.056
- Cerulean Blue #056EEE ΔE 0.058
- Neon Blue #4361EE ΔE 0.060
- Blue Blue #2242C7 ΔE 0.063
- Bright Blue #0165FC ΔE 0.065
- Mid Blue #276AB3 ΔE 0.066
Use #0B5DD3 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.