#4651BB#4651BB
#4651BB is a mid, vivid blue. Relative luminance 0.108; OKLCH L 48.7% C 0.165 H 274.1°. Best body text is #FFFFFF at 6.66:1 contrast (WCAG AA passes).
Color values
| HEX | #4651BB |
|---|---|
| RGB | rgb(70, 81, 187) |
| HSL | hsl(234, 46%, 50%) |
| HSV | hsv(234, 63%, 73%) |
| CMYK | cmyk(62.6%, 56.7%, 0%, 26.7%) |
| CIE-LAB | lab(39.20, 28.85, -57.39) |
| CIE-LCH | lch(39.20, 64.23, 296.69°) |
| OKLab | oklab(48.72% 0.0117 -0.1649) |
| OKLCH | oklch(48.72% 0.165 274.1) |
| XYZ | xyz(14.4349, 10.7736, 48.3229) |
| Luminance | 0.1077 (WCAG relative) |
| Temperature | cool |
| Family | blue |
Closest named colors
Warm Blue
#4B57DB
ΔE00 4.80
Iris
#6258C4
ΔE00 5.03
Ocean Blue
#4F42B5
ΔE00 5.19
Blue Blue
#2242C7
ΔE00 5.24
Sapphire
#0F52BA
ΔE00 5.75
Blue (survey)
#0343DF
ΔE00 6.33
Perceptual scales
Shades
Tints
Tones
OKLCH scale
Color harmonies
complementary
#4651BB #BBB046
analogous
#468BBB #4651BB #7546BB
triadic
#4651BB #BB4651 #51BB46
tetradic
#4651BB #BB468B #BBB046 #46BB75
square
#4651BB #BB468B #BBB046 #46BB75
split-complementary
#4651BB #BB7546 #8BBB46
monochromatic
#242A62 #353D8F #4651BB #737BCB #A0A5DC
Accessibility & contrast
On white
6.66
#4651BB on #FFFFFF
AA ✓AA large ✓AAA ✗
On black
3.16
#4651BB on #000000
AA ✗AA large ✓AAA ✗
Best text color
#FFFFFF on #4651BB
6.66:1 — WCAG AA (normal text) passes
Contrast matrix
| fg \ bg | ##4651BB | #FFFFFF | #000000 | ##FFFFFF |
|---|---|---|---|---|
| ##4651BB | 1.00 | 6.66 | 3.16 | 6.66 |
| #FFFFFF | 6.66 | 1.00 | 21.00 | 1.00 |
| #000000 | 3.16 | 21.00 | 1.00 | 21.00 |
| ##FFFFFF | 6.66 | 1.00 | 21.00 | 1.00 |
Color blindness preview
Protanopia (red-blind)
#0062BF
Deuteranopia (green-blind)
#0057B9
Tritanopia (blue-blind)
#006A7E
Achromatopsia (no color)
#5C5C5C
Design tokens & code
CSS
--color: #4651bb; /* rgb */ color: rgb(70, 81, 187); /* oklch */ color: oklch(48.7% 0.165 274.1);
Tailwind
colors: {
custom: {
50: '#8581d0',
500: '#4651bb',
950: '#000000',
},
}SCSS
$custom: #4651bb; $custom-light: #8581d0; $custom-dark: #000000;
JSON
{
"hex": "#4651bb",
"rgb": {
"r": 70,
"g": 81,
"b": 187
},
"hsl": {
"h": 234.359,
"s": 46.245,
"l": 50.392
},
"oklch": {
"l": 0.48715,
"c": 0.16531,
"h": 274.1
},
"luminance": 0.10775
}Semantic roles & 50–950 ramp
primary
#4651BB
secondary
#C8C494
accent
#C952D6
background
#F8F7FC
surface
#F0EEF9
border
#CBC9D2
text
#0C0A14
muted
#7D7C82