#63A0FC
Closest named color: Cornflower Blue (#6495ED). oklch(70.6% 0.15 258.4), rgb(99, 160, 252).
Aa
Black text reads best on this color (7.96:1).
About this color
#63A0FC is a medium-light, vivid blue. In OKLCH its lightness is 71%, its chroma 0.150 and its hue 258°. Its hue sits on the cool side of the wheel. The nearest named color is Cornflower Blue (#6495ED), ΔE 0.033 away. Black text reads best on it, at 7.96:1.
| Hue family | Blues |
| Lightness | medium-light (71%) |
| Chroma | vivid (0.150) |
| Temperature | cool |
| Nearest name | Cornflower Blue (#6495ED) |
| Black text | 7.96:1 |
| White text | 2.63:1 |
Values
| HEX | #63A0FC |
| RGB | rgb(99, 160, 252) |
| HSL | hsl(216, 96%, 69%) |
| OKLCH | oklch(70.6% 0.15 258.4) |
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 #63A0FC | 2.63:1 | Fails | Lc -56.3 | Large or bold text, headings |
| Black text on #63A0FC | 7.96:1 | AAA | Lc 52.9 | Large or bold text, headings |
| #63A0FC text on white | 2.63:1 | Fails | Lc 51.1 | Large or bold text, headings |
| #63A0FC text on black | 7.96:1 | AAA | Lc -50.8 | Large or bold text, headings |
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 400.
-
Step 50
50
#F0F6FE
oklch(97.1% 0.012 255.5)
-
Step 100
100
#DFEBFC
oklch(93.6% 0.026 257)
-
Step 200
200
#C5DBFC
oklch(88.6% 0.051 258.4)
-
Step 300
300
#9CC3FD
oklch(81% 0.093 258.1)
-
Step 400
400 (this color)
#63A0FC
oklch(70.6% 0.15 258.4)
-
Step 500
500
#3585FA
oklch(63% 0.191 258.4)
-
Step 600
600
#036BE9
oklch(55.5% 0.208 258.4)
-
Step 700
700
#005AC7
oklch(49.2% 0.185 258.3)
-
Step 800
800
#0149A4
oklch(42.7% 0.16 258.4)
-
Step 900
900
#0F3E82
oklch(37.6% 0.125 258.7)
-
Step 950
950
#0B254C
oklch(27% 0.079 258.6)
#63A0FC 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) | #79A7FF | 0.032 |
| Deuteranopia (no green cones) | #6499FA | 0.018 |
| Tritanopia (no blue cones) | #00B5C2 | 0.126 |
| Achromatopsia (no color) | #9F9F9F | 0.150 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #63A0FC
#63A0FC
oklch(70.6% 0.15 258.4)
- #D19300
#D19300
oklch(70.6% 0.147 78.6)
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 #63A0FC, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Cornflower Blue #6495ED ΔE 0.033
- Chefchaouen Blue #4895EF ΔE 0.044
- Periwinkle Blue #8F99FB ΔE 0.051
- Soft Blue #6488EA ΔE 0.064
- Dark Sky Blue #448EE4 ΔE 0.066
- Dodger Blue #1E90FF ΔE 0.069
- Perrywinkle #8F8CE7 ΔE 0.069
- Lavender Blue #8B88F8 ΔE 0.071
Use #63A0FC 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.