#21648B#21648B
#21648B is a mid, moderate cyan. Relative luminance 0.113; OKLCH L 48.0% C 0.091 H 238.7°. Best body text is #FFFFFF at 6.44:1 contrast (WCAG AA passes).
Color values
| HEX | #21648B |
|---|---|
| RGB | rgb(33, 100, 139) |
| HSL | hsl(202, 62%, 34%) |
| HSV | hsv(202, 76%, 55%) |
| CMYK | cmyk(76.3%, 28.1%, 0%, 45.5%) |
| CIE-LAB | lab(40.08, -6.94, -27.52) |
| CIE-LCH | lch(40.08, 28.38, 255.86°) |
| OKLab | oklab(48.01% -0.0472 -0.0777) |
| OKLCH | oklch(48.01% 0.091 238.7) |
| XYZ | xyz(9.8427, 11.3006, 26.0836) |
| Luminance | 0.1130 (WCAG relative) |
| Temperature | cool |
| Family | cyan |
Closest named colors
Ugly Blue
#31668A
ΔE00 1.69
Peacock Blue
#016795
ΔE00 1.96
Denim (survey)
#3B638C
ΔE00 4.72
Ocean Blue (survey)
#03719C
ΔE00 5.01
Light Navy Blue
#2E5A88
ΔE00 5.73
Deep Sea Blue
#015482
ΔE00 5.77
Perceptual scales
Shades
Tints
Tones
OKLCH scale
Color harmonies
complementary
#21648B #8B4821
analogous
#218B7D #21648B #212F8B
triadic
#21648B #8B2164 #648B21
tetradic
#21648B #7D218B #8B4821 #2F8B21
square
#21648B #7D218B #8B4821 #2F8B21
split-complementary
#21648B #8B212F #8B7D21
monochromatic
#0A1D28 #15405A #21648B #2D88BC #51A5D6
Accessibility & contrast
On white
6.44
#21648B on #FFFFFF
AA ✓AA large ✓AAA ✗
On black
3.26
#21648B on #000000
AA ✗AA large ✓AAA ✗
Best text color
#FFFFFF on #21648B
6.44:1 — WCAG AA (normal text) passes
Contrast matrix
| fg \ bg | ##21648B | #FFFFFF | #000000 | ##FFFFFF |
|---|---|---|---|---|
| ##21648B | 1.00 | 6.44 | 3.26 | 6.44 |
| #FFFFFF | 6.44 | 1.00 | 21.00 | 1.00 |
| #000000 | 3.26 | 21.00 | 1.00 | 21.00 |
| ##FFFFFF | 6.44 | 1.00 | 21.00 | 1.00 |
Color blindness preview
Protanopia (red-blind)
#52648D
Deuteranopia (green-blind)
#435A8A
Tritanopia (blue-blind)
#006E71
Achromatopsia (no color)
#5E5E5E
Design tokens & code
CSS
--color: #21648b; /* rgb */ color: rgb(33, 100, 139); /* oklch */ color: oklch(48.0% 0.091 238.7);
Tailwind
colors: {
custom: {
50: '#6c90ad',
500: '#21648b',
950: '#000000',
},
}SCSS
$custom: #21648b; $custom-light: #6c90ad; $custom-dark: #000000;
JSON
{
"hex": "#21648b",
"rgb": {
"r": 33,
"g": 100,
"b": 139
},
"hsl": {
"h": 202.075,
"s": 61.628,
"l": 33.725
},
"oklch": {
"l": 0.48012,
"c": 0.09093,
"h": 238.7
},
"luminance": 0.11302
}Semantic roles & 50–950 ramp
primary
#21648B
secondary
#B9764F
accent
#7F43E5
background
#F6F8FA
surface
#ECF0F4
border
#C7CBCE
text
#080C10
muted
#7A7D7F