#0D63CF
Closest named color: Azul (#1D5DEC). oklch(51.9% 0.183 257.9), rgb(13, 99, 207).
Aa
White text reads best on this color (5.67:1).
About this color
#0D63CF is a medium-dark, vivid blue. In OKLCH its lightness is 52%, its chroma 0.183 and its hue 258°. Its hue sits on the cool side of the wheel. The nearest named color is Azul (#1D5DEC), ΔE 0.048 away. White text reads best on it, at 5.67:1.
| Hue family | Blues |
| Lightness | medium-dark (52%) |
| Chroma | vivid (0.183) |
| Temperature | cool |
| Nearest name | Azul (#1D5DEC) |
| Black text | 3.70:1 |
| White text | 5.67:1 |
Values
| HEX | #0D63CF |
| RGB | rgb(13, 99, 207) |
| HSL | hsl(213, 88%, 43%) |
| OKLCH | oklch(51.9% 0.183 257.9) |
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 #0D63CF | 5.67:1 | AA | Lc -82.9 | Fine for body text |
| Black text on #0D63CF | 3.70:1 | AA large text | Lc 26.4 | Dividers and decoration only |
| #0D63CF text on white | 5.67:1 | AA | Lc 77.6 | Fine for body text |
| #0D63CF text on black | 3.70:1 | AA large text | Lc -24.1 | 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
#E0EBFB
oklch(93.7% 0.025 257.6)
-
Step 200
200
#C5DBFA
oklch(88.5% 0.049 256.9)
-
Step 300
300
#9DC3FA
oklch(81% 0.088 257.6)
-
Step 400
400
#66A1F8
oklch(70.7% 0.142 258)
-
Step 500
500
#3987F4
oklch(63.2% 0.18 257.6)
-
Step 600
600
#0E6DE3
oklch(55.6% 0.197 257.9)
-
Step 700
700 (this color)
#0D63CF
oklch(51.9% 0.183 257.9)
-
Step 800
800
#064AA0
oklch(42.6% 0.153 258.1)
-
Step 900
900
#113F7F
oklch(37.7% 0.119 258)
-
Step 950
950
#0C264A
oklch(27.1% 0.074 257.4)
#0D63CF 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) | #0D6FD3 | 0.032 |
| Deuteranopia (no green cones) | #005FCD | 0.012 |
| Tritanopia (no blue cones) | #007E8F | 0.139 |
| Achromatopsia (no color) | #676767 | 0.183 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #0D63CF
#0D63CF
oklch(51.9% 0.183 257.9)
- #8A5F00
#8A5F00
oklch(51.8% 0.108 77.9)
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 #0D63CF, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Azul #1D5DEC ΔE 0.048
- Royal Blue #4169E1 ΔE 0.049
- Mid Blue #276AB3 ΔE 0.051
- Cerulean Blue #056EEE ΔE 0.054
- Warm Blue #4B57DB ΔE 0.055
- Neon Blue #4361EE ΔE 0.061
- Bright Blue #0165FC ΔE 0.069
- French Blue #436BAD ΔE 0.071
Use #0D63CF 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.