#1263DA
Closest named color: Azul (#1D5DEC). oklch(52.8% 0.197 259.5), rgb(18, 99, 218).
Aa
White text reads best on this color (5.49:1).
About this color
#1263DA is a medium-dark, vivid blue. In OKLCH its lightness is 53%, its chroma 0.197 and its hue 260°. Its hue sits on the cool side of the wheel. The nearest named color is Azul (#1D5DEC), ΔE 0.031 away. White text reads best on it, at 5.49:1.
| Hue family | Blues |
| Lightness | medium-dark (53%) |
| Chroma | vivid (0.197) |
| Temperature | cool |
| Nearest name | Azul (#1D5DEC) |
| Black text | 3.82:1 |
| White text | 5.49:1 |
Values
| HEX | #1263DA |
| RGB | rgb(18, 99, 218) |
| HSL | hsl(216, 85%, 46%) |
| OKLCH | oklch(52.8% 0.197 259.5) |
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 #1263DA | 5.49:1 | AA | Lc -82.0 | Fine for body text |
| Black text on #1263DA | 3.82:1 | AA large text | Lc 27.4 | Dividers and decoration only |
| #1263DA text on white | 5.49:1 | AA | Lc 76.7 | Fine for body text |
| #1263DA text on black | 3.82:1 | AA large text | Lc -25.1 | 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 600.
-
Step 50
50
#F1F6FE
oklch(97.2% 0.012 259.8)
-
Step 100
100
#E0EBFC
oklch(93.7% 0.026 259)
-
Step 200
200
#C6DAFA
oklch(88.4% 0.049 259.8)
-
Step 300
300
#9FC2FA
oklch(80.9% 0.088 259.7)
-
Step 400
400
#6AA0F8
oklch(70.7% 0.142 259.7)
-
Step 500
500
#4085F5
oklch(63% 0.182 259.7)
-
Step 600
600 (this color)
#1263DA
oklch(52.8% 0.197 259.5)
-
Step 700
700
#0F59C6
oklch(49.1% 0.183 259.5)
-
Step 800
800
#114AA0
oklch(42.8% 0.151 259.4)
-
Step 900
900
#163F7F
oklch(37.8% 0.118 259.3)
-
Step 950
950
#0E254A
oklch(26.9% 0.075 259.5)
#1263DA 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) | #0072DE | 0.038 |
| Deuteranopia (no green cones) | #0061D8 | 0.008 |
| Tritanopia (no blue cones) | #008195 | 0.149 |
| Achromatopsia (no color) | #696969 | 0.197 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #1263DA
#1263DA
oklch(52.8% 0.197 259.5)
- #8C6300
#8C6300
oklch(52.9% 0.109 80.2)
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 #1263DA, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Azul #1D5DEC ΔE 0.031
- Cerulean Blue #056EEE ΔE 0.040
- Royal Blue #4169E1 ΔE 0.040
- Neon Blue #4361EE ΔE 0.047
- Warm Blue #4B57DB ΔE 0.048
- Bright Blue #0165FC ΔE 0.052
- Mid Blue #276AB3 ΔE 0.066
- Electric Blue #0652FF ΔE 0.067
Use #1263DA 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.