#283EA7#283EA7
#283EA7 is a dark, vivid blue. Relative luminance 0.067; OKLCH L 41.7% C 0.170 H 268.6°. Best body text is #FFFFFF at 8.99:1 contrast (WCAG AA passes).
Color values
| HEX | #283EA7 |
|---|---|
| RGB | rgb(40, 62, 167) |
| HSL | hsl(230, 61%, 41%) |
| HSV | hsv(230, 76%, 65%) |
| CMYK | cmyk(76%, 62.9%, 0%, 34.5%) |
| CIE-LAB | lab(31.08, 29.68, -58.82) |
| CIE-LCH | lch(31.08, 65.88, 296.78°) |
| OKLab | oklab(41.74% -0.0042 -0.17) |
| OKLCH | oklch(41.74% 0.17 268.6) |
| XYZ | xyz(9.5703, 6.6853, 37.3377) |
| Luminance | 0.0669 (WCAG relative) |
| Temperature | cool |
| Family | blue |
Closest named colors
Sapphire (survey)
#2138AB
ΔE00 1.92
Blue Blue
#2242C7
ΔE00 4.36
Cobalt
#0047AB
ΔE00 4.50
Blueberry
#464196
ΔE00 5.01
Ocean Blue
#4F42B5
ΔE00 5.75
Cobalt (survey)
#1E488F
ΔE00 6.27
Perceptual scales
Shades
Tints
Tones
OKLCH scale
Color harmonies
complementary
#283EA7 #A79128
analogous
#287EA7 #283EA7 #5128A7
triadic
#283EA7 #A7283E #3EA728
tetradic
#283EA7 #A7287E #A79128 #28A751
square
#283EA7 #A7287E #A79128 #28A751
split-complementary
#283EA7 #A75128 #7EA728
monochromatic
#101944 #1C2C76 #283EA7 #3C56D0 #6D80DC
Accessibility & contrast
On white
8.99
#283EA7 on #FFFFFF
AA ✓AA large ✓AAA ✓
On black
2.34
#283EA7 on #000000
AA ✗AA large ✗AAA ✗
Best text color
#FFFFFF on #283EA7
8.99:1 — WCAG AA (normal text) passes
Contrast matrix
| fg \ bg | ##283EA7 | #FFFFFF | #000000 | ##FFFFFF |
|---|---|---|---|---|
| ##283EA7 | 1.00 | 8.99 | 2.34 | 8.99 |
| #FFFFFF | 8.99 | 1.00 | 21.00 | 1.00 |
| #000000 | 2.34 | 21.00 | 1.00 | 21.00 |
| ##FFFFFF | 8.99 | 1.00 | 21.00 | 1.00 |
Color blindness preview
Protanopia (red-blind)
#004FAA
Deuteranopia (green-blind)
#0043A5
Tritanopia (blue-blind)
#00596C
Achromatopsia (no color)
#494949
Design tokens & code
CSS
--color: #283ea7; /* rgb */ color: rgb(40, 62, 167); /* oklch */ color: oklch(41.7% 0.170 268.6);
Tailwind
colors: {
custom: {
50: '#7673c2',
500: '#283ea7',
950: '#000000',
},
}SCSS
$custom: #283ea7; $custom-light: #7673c2; $custom-dark: #000000;
JSON
{
"hex": "#283ea7",
"rgb": {
"r": 40,
"g": 62,
"b": 167
},
"hsl": {
"h": 229.606,
"s": 61.353,
"l": 40.588
},
"oklch": {
"l": 0.4174,
"c": 0.17006,
"h": 268.6
},
"luminance": 0.06686
}Semantic roles & 50–950 ramp
primary
#283EA7
secondary
#C3B368
accent
#C943E4
background
#F7F6FC
surface
#EEECF8
border
#C9C7D1
text
#0A0812
muted
#7C7B81