#21759C#21759C
#21759C is a mid, moderate cyan. Relative luminance 0.154; OKLCH L 53.2% C 0.098 H 233.6°. Best body text is #FFFFFF at 5.14:1 contrast (WCAG AA passes).
Color values
| HEX | #21759C |
|---|---|
| RGB | rgb(33, 117, 156) |
| HSL | hsl(199, 65%, 37%) |
| HSV | hsv(199, 79%, 61%) |
| CMYK | cmyk(78.8%, 25%, 0%, 38.8%) |
| CIE-LAB | lab(46.24, -10.74, -28.04) |
| CIE-LCH | lch(46.24, 30.02, 249.05°) |
| OKLab | oklab(53.17% -0.0582 -0.079) |
| OKLCH | oklch(53.17% 0.098 233.6) |
| XYZ | xyz(12.9868, 15.4446, 33.7427) |
| Luminance | 0.1545 (WCAG relative) |
| Temperature | cool |
| Family | cyan |
Closest named colors
Ocean Blue (survey)
#03719C
ΔE00 1.89
Cerulean
#007BA7
ΔE00 2.50
Sea Blue
#047495
ΔE00 3.18
Nice Blue
#107AB0
ΔE00 3.90
Muted Blue
#3B719F
ΔE00 5.28
Peacock Blue
#016795
ΔE00 5.45
Perceptual scales
Shades
Tints
Tones
OKLCH scale
Color harmonies
complementary
#21759C #9C4821
analogous
#219C85 #21759C #21389C
triadic
#21759C #9C2175 #759C21
tetradic
#21759C #85219C #9C4821 #389C21
square
#21759C #85219C #9C4821 #389C21
split-complementary
#21759C #9C2138 #9C8521
monochromatic
#0C2937 #164F69 #21759C #2C9BCF #5BB3DC
Accessibility & contrast
On white
5.14
#21759C on #FFFFFF
AA ✓AA large ✓AAA ✗
On black
4.09
#21759C on #000000
AA ✗AA large ✓AAA ✗
Best text color
#FFFFFF on #21759C
5.14:1 — WCAG AA (normal text) passes
Contrast matrix
| fg \ bg | ##21759C | #FFFFFF | #000000 | ##FFFFFF |
|---|---|---|---|---|
| ##21759C | 1.00 | 5.14 | 4.09 | 5.14 |
| #FFFFFF | 5.14 | 1.00 | 21.00 | 1.00 |
| #000000 | 4.09 | 21.00 | 1.00 | 21.00 |
| ##FFFFFF | 5.14 | 1.00 | 21.00 | 1.00 |
Color blindness preview
Protanopia (red-blind)
#62749E
Deuteranopia (green-blind)
#51689B
Tritanopia (blue-blind)
#007F82
Achromatopsia (no color)
#6E6E6E
Design tokens & code
CSS
--color: #21759c; /* rgb */ color: rgb(33, 117, 156); /* oklch */ color: oklch(53.2% 0.098 233.6);
Tailwind
colors: {
custom: {
50: '#709cb9',
500: '#21759c',
950: '#000000',
},
}SCSS
$custom: #21759c; $custom-light: #709cb9; $custom-dark: #000000;
JSON
{
"hex": "#21759c",
"rgb": {
"r": 33,
"g": 117,
"b": 156
},
"hsl": {
"h": 199.024,
"s": 65.079,
"l": 37.059
},
"oklch": {
"l": 0.53171,
"c": 0.09818,
"h": 233.6
},
"luminance": 0.15446
}Semantic roles & 50–950 ramp
primary
#21759C
secondary
#C17958
accent
#7540E8
background
#F7F9FB
surface
#EDF2F6
border
#C8CCD0
text
#090E11
muted
#7B7E80