#21528C#21528C
#21528C is a dark, moderate cyan. Relative luminance 0.083; OKLCH L 43.6% C 0.109 H 254.6°. Best body text is #FFFFFF at 7.92:1 contrast (WCAG AA passes).
Color values
| HEX | #21528C |
|---|---|
| RGB | rgb(33, 82, 140) |
| HSL | hsl(213, 62%, 34%) |
| HSV | hsv(213, 76%, 55%) |
| CMYK | cmyk(76.4%, 41.4%, 0%, 45.1%) |
| CIE-LAB | lab(34.50, 4.84, -36.94) |
| CIE-LCH | lch(34.50, 37.26, 277.46°) |
| OKLab | oklab(43.64% -0.029 -0.1055) |
| OKLCH | oklch(43.64% 0.109 254.6) |
| XYZ | xyz(8.3764, 8.2504, 25.9569) |
| Luminance | 0.0825 (WCAG relative) |
| Temperature | cool |
| Family | cyan |
Closest named colors
Dusk Blue
#26538D
ΔE00 0.64
Light Navy
#155084
ΔE00 2.00
Light Navy Blue
#2E5A88
ΔE00 2.94
Cobalt (survey)
#1E488F
ΔE00 3.80
Denim Blue
#3B5B92
ΔE00 4.17
Deep Sea Blue
#015482
ΔE00 4.64
Perceptual scales
Shades
Tints
Tones
OKLCH scale
Color harmonies
complementary
#21528C #8C5B21
analogous
#21888C #21528C #25218C
triadic
#21528C #8C2152 #528C21
tetradic
#21528C #8C2188 #8C5B21 #218C25
square
#21528C #8C2188 #8C5B21 #218C25
split-complementary
#21528C #8C2521 #888C21
monochromatic
#0A1829 #15355A #21528C #2D6FBE #518ED6
Accessibility & contrast
On white
7.92
#21528C on #FFFFFF
AA ✓AA large ✓AAA ✓
On black
2.65
#21528C on #000000
AA ✗AA large ✗AAA ✗
Best text color
#FFFFFF on #21528C
7.92:1 — WCAG AA (normal text) passes
Contrast matrix
| fg \ bg | ##21528C | #FFFFFF | #000000 | ##FFFFFF |
|---|---|---|---|---|
| ##21528C | 1.00 | 7.92 | 2.65 | 7.92 |
| #FFFFFF | 7.92 | 1.00 | 21.00 | 1.00 |
| #000000 | 2.65 | 21.00 | 1.00 | 21.00 |
| ##FFFFFF | 7.92 | 1.00 | 21.00 | 1.00 |
Color blindness preview
Protanopia (red-blind)
#36568E
Deuteranopia (green-blind)
#254D8B
Tritanopia (blue-blind)
#006068
Achromatopsia (no color)
#515151
Design tokens & code
CSS
--color: #21528c; /* rgb */ color: rgb(33, 82, 140); /* oklch */ color: oklch(43.6% 0.109 254.6);
Tailwind
colors: {
custom: {
50: '#6c82ae',
500: '#21528c',
950: '#000000',
},
}SCSS
$custom: #21528c; $custom-light: #6c82ae; $custom-dark: #000000;
JSON
{
"hex": "#21528c",
"rgb": {
"r": 33,
"g": 82,
"b": 140
},
"hsl": {
"h": 212.523,
"s": 61.85,
"l": 33.922
},
"oklch": {
"l": 0.43638,
"c": 0.10941,
"h": 254.6
},
"luminance": 0.08251
}Semantic roles & 50–950 ramp
primary
#21528C
secondary
#B9894F
accent
#9B43E5
background
#F6F7FA
surface
#ECEEF4
border
#C7C9CE
text
#080A10
muted
#7A7C7F