#21507C#21507C
#21507C is a dark, moderate cyan. Relative luminance 0.075; OKLCH L 42.1% C 0.090 H 249.5°. Best body text is #FFFFFF at 8.39:1 contrast (WCAG AA passes).
Color values
| HEX | #21507C |
|---|---|
| RGB | rgb(33, 80, 124) |
| HSL | hsl(209, 58%, 31%) |
| HSV | hsv(209, 73%, 49%) |
| CMYK | cmyk(73.4%, 35.5%, 0%, 51.4%) |
| CIE-LAB | lab(32.95, -0.10, -29.55) |
| CIE-LCH | lch(32.95, 29.55, 269.80°) |
| OKLab | oklab(42.13% -0.0313 -0.0839) |
| OKLCH | oklch(42.13% 0.09 249.5) |
| XYZ | xyz(7.1326, 7.5151, 20.1395) |
| Luminance | 0.0752 (WCAG relative) |
| Temperature | cool |
| Family | cyan |
Closest named colors
Light Navy
#155084
ΔE00 1.29
Dusk Blue
#26538D
ΔE00 2.82
Deep Sea Blue
#015482
ΔE00 3.32
Light Navy Blue
#2E5A88
ΔE00 3.54
Prussian Blue
#004577
ΔE00 3.75
Twilight Blue
#0A437A
ΔE00 4.40
Perceptual scales
Shades
Tints
Tones
OKLCH scale
Color harmonies
complementary
#21507C #7C4D21
analogous
#217C7A #21507C #21227C
triadic
#21507C #7C2150 #507C21
tetradic
#21507C #7A217C #7C4D21 #227C21
square
#21507C #7A217C #7C4D21 #227C21
split-complementary
#21507C #7C2122 #7C7A21
monochromatic
#07121B #14314C #21507C #2E6FAC #498ECF
Accessibility & contrast
On white
8.39
#21507C on #FFFFFF
AA ✓AA large ✓AAA ✓
On black
2.50
#21507C on #000000
AA ✗AA large ✗AAA ✗
Best text color
#FFFFFF on #21507C
8.39:1 — WCAG AA (normal text) passes
Contrast matrix
| fg \ bg | ##21507C | #FFFFFF | #000000 | ##FFFFFF |
|---|---|---|---|---|
| ##21507C | 1.00 | 8.39 | 2.50 | 8.39 |
| #FFFFFF | 8.39 | 1.00 | 21.00 | 1.00 |
| #000000 | 2.50 | 21.00 | 1.00 | 21.00 |
| ##FFFFFF | 8.39 | 1.00 | 21.00 | 1.00 |
Color blindness preview
Protanopia (red-blind)
#3C527E
Deuteranopia (green-blind)
#2F4A7B
Tritanopia (blue-blind)
#005A60
Achromatopsia (no color)
#4D4D4D
Design tokens & code
CSS
--color: #21507c; /* rgb */ color: rgb(33, 80, 124); /* oklch */ color: oklch(42.1% 0.090 249.5);
Tailwind
colors: {
custom: {
50: '#6980a2',
500: '#21507c',
950: '#000000',
},
}SCSS
$custom: #21507c; $custom-light: #6980a2; $custom-dark: #000000;
JSON
{
"hex": "#21507c",
"rgb": {
"r": 33,
"g": 80,
"b": 124
},
"hsl": {
"h": 209.011,
"s": 57.962,
"l": 30.784
},
"oklch": {
"l": 0.42128,
"c": 0.08954,
"h": 249.5
},
"luminance": 0.07516
}Semantic roles & 50–950 ramp
primary
#21507C
secondary
#AF7B4A
accent
#9147E1
background
#F6F7FA
surface
#EBEEF3
border
#C6C9CD
text
#070A0F
muted
#7A7C7F