#21638D#21638D
#21638D is a mid, moderate cyan. Relative luminance 0.112; OKLCH L 47.9% C 0.094 H 241.0°. Best body text is #FFFFFF at 6.49:1 contrast (WCAG AA passes).
Color values
| HEX | #21638D |
|---|---|
| RGB | rgb(33, 99, 141) |
| HSL | hsl(203, 62%, 34%) |
| HSV | hsv(203, 77%, 55%) |
| CMYK | cmyk(76.6%, 29.8%, 0%, 44.7%) |
| CIE-LAB | lab(39.86, -5.58, -29.07) |
| CIE-LCH | lch(39.86, 29.60, 259.14°) |
| OKLab | oklab(47.87% -0.0455 -0.0822) |
| OKLCH | oklch(47.87% 0.094 241) |
| XYZ | xyz(9.8949, 11.1689, 26.8285) |
| Luminance | 0.1117 (WCAG relative) |
| Temperature | cool |
| Family | cyan |
Closest named colors
Ugly Blue
#31668A
ΔE00 1.89
Peacock Blue
#016795
ΔE00 2.24
Denim (survey)
#3B638C
ΔE00 4.06
Light Navy Blue
#2E5A88
ΔE00 4.89
Deep Sea Blue
#015482
ΔE00 5.23
Ocean Blue (survey)
#03719C
ΔE00 5.63
Perceptual scales
Shades
Tints
Tones
OKLCH scale
Color harmonies
complementary
#21638D #8D4B21
analogous
#218D81 #21638D #212D8D
triadic
#21638D #8D2163 #638D21
tetradic
#21638D #81218D #8D4B21 #2D8D21
square
#21638D #81218D #8D4B21 #2D8D21
split-complementary
#21638D #8D212D #8D8121
monochromatic
#0A1D2A #15405B #21638D #2D86BF #52A3D6
Accessibility & contrast
On white
6.49
#21638D on #FFFFFF
AA ✓AA large ✓AAA ✗
On black
3.23
#21638D on #000000
AA ✗AA large ✓AAA ✗
Best text color
#FFFFFF on #21638D
6.49:1 — WCAG AA (normal text) passes
Contrast matrix
| fg \ bg | ##21638D | #FFFFFF | #000000 | ##FFFFFF |
|---|---|---|---|---|
| ##21638D | 1.00 | 6.49 | 3.23 | 6.49 |
| #FFFFFF | 6.49 | 1.00 | 21.00 | 1.00 |
| #000000 | 3.23 | 21.00 | 1.00 | 21.00 |
| ##FFFFFF | 6.49 | 1.00 | 21.00 | 1.00 |
Color blindness preview
Protanopia (red-blind)
#4F648F
Deuteranopia (green-blind)
#41598C
Tritanopia (blue-blind)
#006D72
Achromatopsia (no color)
#5E5E5E
Design tokens & code
CSS
--color: #21638d; /* rgb */ color: rgb(33, 99, 141); /* oklch */ color: oklch(47.9% 0.094 241.0);
Tailwind
colors: {
custom: {
50: '#6c8fae',
500: '#21638d',
950: '#000000',
},
}SCSS
$custom: #21638d; $custom-light: #6c8fae; $custom-dark: #000000;
JSON
{
"hex": "#21638d",
"rgb": {
"r": 33,
"g": 99,
"b": 141
},
"hsl": {
"h": 203.333,
"s": 62.069,
"l": 34.118
},
"oklch": {
"l": 0.47871,
"c": 0.09398,
"h": 241
},
"luminance": 0.1117
}Semantic roles & 50–950 ramp
primary
#21638D
secondary
#BA7950
accent
#8243E5
background
#F7F8FA
surface
#EDF0F4
border
#C8CBCE
text
#080C10
muted
#7B7D7F