#21528D#21528D
#21528D is a dark, moderate cyan. Relative luminance 0.083; OKLCH L 43.7% C 0.111 H 254.9°. Best body text is #FFFFFF at 7.91:1 contrast (WCAG AA passes).
Color values
| HEX | #21528D |
|---|---|
| RGB | rgb(33, 82, 141) |
| HSL | hsl(213, 62%, 34%) |
| HSV | hsv(213, 77%, 55%) |
| CMYK | cmyk(76.6%, 41.8%, 0%, 44.7%) |
| CIE-LAB | lab(34.56, 5.23, -37.46) |
| CIE-LCH | lch(34.56, 37.82, 277.95°) |
| OKLab | oklab(43.7% -0.0288 -0.107) |
| OKLCH | oklch(43.7% 0.111 254.9) |
| XYZ | xyz(8.4504, 8.2800, 26.3470) |
| Luminance | 0.0828 (WCAG relative) |
| Temperature | cool |
| Family | cyan |
Closest named colors
Dusk Blue
#26538D
ΔE00 0.57
Light Navy
#155084
ΔE00 2.12
Light Navy Blue
#2E5A88
ΔE00 2.99
Cobalt (survey)
#1E488F
ΔE00 3.74
Denim Blue
#3B5B92
ΔE00 4.11
Deep Sea Blue
#015482
ΔE00 4.76
Perceptual scales
Shades
Tints
Tones
OKLCH scale
Color harmonies
complementary
#21528D #8D5C21
analogous
#21888D #21528D #26218D
triadic
#21528D #8D2152 #528D21
tetradic
#21528D #8D2188 #8D5C21 #218D26
square
#21528D #8D2188 #8D5C21 #218D26
split-complementary
#21528D #8D2621 #888D21
monochromatic
#0A182A #15355B #21528D #2D6FBF #528ED6
Accessibility & contrast
On white
7.91
#21528D on #FFFFFF
AA ✓AA large ✓AAA ✓
On black
2.66
#21528D on #000000
AA ✗AA large ✗AAA ✗
Best text color
#FFFFFF on #21528D
7.91:1 — WCAG AA (normal text) passes
Contrast matrix
| fg \ bg | ##21528D | #FFFFFF | #000000 | ##FFFFFF |
|---|---|---|---|---|
| ##21528D | 1.00 | 7.91 | 2.66 | 7.91 |
| #FFFFFF | 7.91 | 1.00 | 21.00 | 1.00 |
| #000000 | 2.66 | 21.00 | 1.00 | 21.00 |
| ##FFFFFF | 7.91 | 1.00 | 21.00 | 1.00 |
Color blindness preview
Protanopia (red-blind)
#36578F
Deuteranopia (green-blind)
#244D8C
Tritanopia (blue-blind)
#006068
Achromatopsia (no color)
#515151
Design tokens & code
CSS
--color: #21528d; /* rgb */ color: rgb(33, 82, 141); /* oklch */ color: oklch(43.7% 0.111 254.9);
Tailwind
colors: {
custom: {
50: '#6c82af',
500: '#21528d',
950: '#000000',
},
}SCSS
$custom: #21528d; $custom-light: #6c82af; $custom-dark: #000000;
JSON
{
"hex": "#21528d",
"rgb": {
"r": 33,
"g": 82,
"b": 141
},
"hsl": {
"h": 212.778,
"s": 62.069,
"l": 34.118
},
"oklch": {
"l": 0.43704,
"c": 0.11081,
"h": 254.9
},
"luminance": 0.08281
}Semantic roles & 50–950 ramp
primary
#21528D
secondary
#BA8A50
accent
#9B43E5
background
#F6F7FA
surface
#ECEEF4
border
#C7C9CE
text
#080A10
muted
#7A7C7F