#21729F#21729F
#21729F is a mid, moderate cyan. Relative luminance 0.149; OKLCH L 52.6% C 0.103 H 238.3°. Best body text is #FFFFFF at 5.29:1 contrast (WCAG AA passes).
Color values
| HEX | #21729F |
|---|---|
| RGB | rgb(33, 114, 159) |
| HSL | hsl(201, 66%, 38%) |
| HSV | hsv(201, 79%, 62%) |
| CMYK | cmyk(79.2%, 28.3%, 0%, 37.6%) |
| CIE-LAB | lab(45.44, -7.88, -31.05) |
| CIE-LCH | lch(45.44, 32.03, 255.76°) |
| OKLab | oklab(52.58% -0.0543 -0.0878) |
| OKLCH | oklch(52.58% 0.103 238.3) |
| XYZ | xyz(12.9000, 14.8596, 34.9825) |
| Luminance | 0.1486 (WCAG relative) |
| Temperature | cool |
| Family | cyan |
Closest named colors
Ocean Blue (survey)
#03719C
ΔE00 2.00
Nice Blue
#107AB0
ΔE00 3.38
Muted Blue
#3B719F
ΔE00 3.57
Cerulean
#007BA7
ΔE00 3.97
Peacock Blue
#016795
ΔE00 4.10
Flat Blue
#3C73A8
ΔE00 4.70
Perceptual scales
Shades
Tints
Tones
OKLCH scale
Color harmonies
complementary
#21729F #9F4E21
analogous
#219F8D #21729F #21339F
triadic
#21729F #9F2172 #729F21
tetradic
#21729F #8D219F #9F4E21 #339F21
square
#21729F #8D219F #9F4E21 #339F21
split-complementary
#21729F #9F2133 #9F8D21
monochromatic
#0C293A #164E6C #21729F #2C96D2 #5DB0DD
Accessibility & contrast
On white
5.29
#21729F on #FFFFFF
AA ✓AA large ✓AAA ✗
On black
3.97
#21729F on #000000
AA ✗AA large ✓AAA ✗
Best text color
#FFFFFF on #21729F
5.29:1 — WCAG AA (normal text) passes
Contrast matrix
| fg \ bg | ##21729F | #FFFFFF | #000000 | ##FFFFFF |
|---|---|---|---|---|
| ##21729F | 1.00 | 5.29 | 3.97 | 5.29 |
| #FFFFFF | 5.29 | 1.00 | 21.00 | 1.00 |
| #000000 | 3.97 | 21.00 | 1.00 | 21.00 |
| ##FFFFFF | 5.29 | 1.00 | 21.00 | 1.00 |
Color blindness preview
Protanopia (red-blind)
#5D72A1
Deuteranopia (green-blind)
#4C669E
Tritanopia (blue-blind)
#007D82
Achromatopsia (no color)
#6C6C6C
Design tokens & code
CSS
--color: #21729f; /* rgb */ color: rgb(33, 114, 159); /* oklch */ color: oklch(52.6% 0.103 238.3);
Tailwind
colors: {
custom: {
50: '#709abb',
500: '#21729f',
950: '#000000',
},
}SCSS
$custom: #21729f; $custom-light: #709abb; $custom-dark: #000000;
JSON
{
"hex": "#21729f",
"rgb": {
"r": 33,
"g": 114,
"b": 159
},
"hsl": {
"h": 201.429,
"s": 65.625,
"l": 37.647
},
"oklch": {
"l": 0.52583,
"c": 0.1032,
"h": 238.3
},
"luminance": 0.14861
}Semantic roles & 50–950 ramp
primary
#21729F
secondary
#C27F5A
accent
#7C3FE9
background
#F7F9FB
surface
#EDF2F6
border
#C8CCD0
text
#090E12
muted
#7B7E81