#28489D#28489D
#28489D is a dark, vivid blue. Relative luminance 0.075; OKLCH L 42.9% C 0.144 H 265.2°. Best body text is #FFFFFF at 8.39:1 contrast (WCAG AA passes).
Color values
| HEX | #28489D |
|---|---|
| RGB | rgb(40, 72, 157) |
| HSL | hsl(224, 59%, 39%) |
| HSV | hsv(224, 75%, 62%) |
| CMYK | cmyk(74.5%, 54.1%, 0%, 38.4%) |
| CIE-LAB | lab(32.96, 19.17, -49.73) |
| CIE-LCH | lch(32.96, 53.29, 291.08°) |
| OKLab | oklab(42.9% -0.012 -0.1432) |
| OKLCH | oklch(42.9% 0.144 265.2) |
| XYZ | xyz(9.2761, 7.5192, 32.8542) |
| Luminance | 0.0752 (WCAG relative) |
| Temperature | cool |
| Family | blue |
Closest named colors
Cobalt
#0047AB
ΔE00 2.59
Cobalt (survey)
#1E488F
ΔE00 2.75
Sapphire
#0F52BA
ΔE00 5.01
Dusk Blue
#26538D
ΔE00 5.30
Darkish Blue
#014182
ΔE00 5.48
Sapphire (survey)
#2138AB
ΔE00 5.90
Perceptual scales
Shades
Tints
Tones
OKLCH scale
Color harmonies
complementary
#28489D #9D7D28
analogous
#28829D #28489D #42289D
triadic
#28489D #9D2848 #489D28
tetradic
#28489D #9D2882 #9D7D28 #289D42
square
#28489D #9D2882 #9D7D28 #289D42
split-complementary
#28489D #9D4228 #829D28
monochromatic
#0F1B3B #1C326C #28489D #365FCC #6786D8
Accessibility & contrast
On white
8.39
#28489D on #FFFFFF
AA ✓AA large ✓AAA ✓
On black
2.50
#28489D on #000000
AA ✗AA large ✗AAA ✗
Best text color
#FFFFFF on #28489D
8.39:1 — WCAG AA (normal text) passes
Contrast matrix
| fg \ bg | ##28489D | #FFFFFF | #000000 | ##FFFFFF |
|---|---|---|---|---|
| ##28489D | 1.00 | 8.39 | 2.50 | 8.39 |
| #FFFFFF | 8.39 | 1.00 | 21.00 | 1.00 |
| #000000 | 2.50 | 21.00 | 1.00 | 21.00 |
| ##FFFFFF | 8.39 | 1.00 | 21.00 | 1.00 |
Color blindness preview
Protanopia (red-blind)
#0853A0
Deuteranopia (green-blind)
#00489B
Tritanopia (blue-blind)
#005D6B
Achromatopsia (no color)
#4E4E4E
Design tokens & code
CSS
--color: #28489d; /* rgb */ color: rgb(40, 72, 157); /* oklch */ color: oklch(42.9% 0.144 265.2);
Tailwind
colors: {
custom: {
50: '#737abb',
500: '#28489d',
950: '#000000',
},
}SCSS
$custom: #28489d; $custom-light: #737abb; $custom-dark: #000000;
JSON
{
"hex": "#28489d",
"rgb": {
"r": 40,
"g": 72,
"b": 157
},
"hsl": {
"h": 223.59,
"s": 59.391,
"l": 38.627
},
"oklch": {
"l": 0.42896,
"c": 0.14367,
"h": 265.2
},
"luminance": 0.0752
}Semantic roles & 50–950 ramp
primary
#28489D
secondary
#BEA562
accent
#B845E3
background
#F7F7FB
surface
#EDEDF6
border
#C8C8D0
text
#090912
muted
#7B7B81