#21758D#21758D
#21758D is a mid, moderate cyan. Relative luminance 0.150; OKLCH L 52.4% C 0.085 H 221.4°. Best body text is #FFFFFF at 5.26:1 contrast (WCAG AA passes).
Color values
| HEX | #21758D |
|---|---|
| RGB | rgb(33, 117, 141) |
| HSL | hsl(193, 62%, 34%) |
| HSV | hsv(193, 77%, 55%) |
| CMYK | cmyk(76.6%, 17%, 0%, 44.7%) |
| CIE-LAB | lab(45.59, -16.08, -20.17) |
| CIE-LCH | lch(45.59, 25.80, 231.44°) |
| OKLab | oklab(52.44% -0.064 -0.0564) |
| OKLCH | oklch(52.44% 0.085 221.4) |
| XYZ | xyz(11.7942, 14.9676, 27.4616) |
| Luminance | 0.1497 (WCAG relative) |
| Temperature | cool |
| Family | cyan |
Closest named colors
Ocean
#017B92
ΔE00 2.82
Sea Blue
#047495
ΔE00 2.91
Dirty Blue
#3F829D
ΔE00 5.98
Ocean Blue (survey)
#03719C
ΔE00 6.43
Cerulean
#007BA7
ΔE00 6.49
Teal Blue
#01889F
ΔE00 7.23
Perceptual scales
Shades
Tints
Tones
OKLCH scale
Color harmonies
complementary
#21758D #8D3921
analogous
#218D6F #21758D #213F8D
triadic
#21758D #8D2175 #758D21
tetradic
#21758D #6F218D #8D3921 #3F8D21
square
#21758D #6F218D #8D3921 #3F8D21
split-complementary
#21758D #8D213F #8D6F21
monochromatic
#0A232A #154C5B #21758D #2D9EBF #52B9D6
Accessibility & contrast
On white
5.26
#21758D on #FFFFFF
AA ✓AA large ✓AAA ✗
On black
3.99
#21758D on #000000
AA ✗AA large ✓AAA ✗
Best text color
#FFFFFF on #21758D
5.26:1 — WCAG AA (normal text) passes
Contrast matrix
| fg \ bg | ##21758D | #FFFFFF | #000000 | ##FFFFFF |
|---|---|---|---|---|
| ##21758D | 1.00 | 5.26 | 3.99 | 5.26 |
| #FFFFFF | 5.26 | 1.00 | 21.00 | 1.00 |
| #000000 | 3.99 | 21.00 | 1.00 | 21.00 |
| ##FFFFFF | 5.26 | 1.00 | 21.00 | 1.00 |
Color blindness preview
Protanopia (red-blind)
#67728E
Deuteranopia (green-blind)
#58678D
Tritanopia (blue-blind)
#007D7D
Achromatopsia (no color)
#6C6C6C
Design tokens & code
CSS
--color: #21758d; /* rgb */ color: rgb(33, 117, 141); /* oklch */ color: oklch(52.4% 0.085 221.4);
Tailwind
colors: {
custom: {
50: '#6e9dae',
500: '#21758d',
950: '#000000',
},
}SCSS
$custom: #21758d; $custom-light: #6e9dae; $custom-dark: #000000;
JSON
{
"hex": "#21758d",
"rgb": {
"r": 33,
"g": 117,
"b": 141
},
"hsl": {
"h": 193.333,
"s": 62.069,
"l": 34.118
},
"oklch": {
"l": 0.52439,
"c": 0.08535,
"h": 221.4
},
"luminance": 0.14969
}Semantic roles & 50–950 ramp
primary
#21758D
secondary
#BA6750
accent
#6743E5
background
#F7F9FA
surface
#EDF2F4
border
#C8CCCE
text
#080E10
muted
#7B7E7F