#213B4E#213B4E
#213B4E is a dark, muted cyan. Relative luminance 0.040; OKLCH L 34.0% C 0.046 H 241.6°. Best body text is #FFFFFF at 11.67:1 contrast (WCAG AA passes).
Color values
| HEX | #213B4E |
|---|---|
| RGB | rgb(33, 59, 78) |
| HSL | hsl(205, 41%, 22%) |
| HSV | hsv(205, 58%, 31%) |
| CMYK | cmyk(57.7%, 24.4%, 0%, 69.4%) |
| CIE-LAB | lab(23.67, -3.63, -14.63) |
| CIE-LCH | lch(23.67, 15.07, 256.06°) |
| OKLab | oklab(34.04% -0.022 -0.0408) |
| OKLCH | oklch(34.04% 0.046 241.6) |
| XYZ | xyz(3.5658, 4.0010, 7.7906) |
| Luminance | 0.0400 (WCAG relative) |
| Temperature | cool |
| Family | cyan |
Closest named colors
Dark Blue Grey
#1F3B4D
ΔE00 1.00
Dark Grey Blue
#29465B
ΔE00 3.58
Dark Slate Blue
#214761
ΔE00 4.53
Charcoal
#36454F
ΔE00 5.60
Gunmetal
#2A3439
ΔE00 7.24
Marine Blue
#01386A
ΔE00 7.97
Perceptual scales
Shades
Tints
Tones
OKLCH scale
Color harmonies
complementary
#213B4E #4E3421
analogous
#214E4B #213B4E #21254E
triadic
#213B4E #4E213B #3B4E21
tetradic
#213B4E #4B214E #4E3421 #254E21
square
#213B4E #4B214E #4E3421 #254E21
split-complementary
#213B4E #4E2125 #4E4B21
monochromatic
#091016 #0F1A23 #213B4E #335C79 #457CA4
Accessibility & contrast
On white
11.67
#213B4E on #FFFFFF
AA ✓AA large ✓AAA ✓
On black
1.80
#213B4E on #000000
AA ✗AA large ✗AAA ✗
Best text color
#FFFFFF on #213B4E
11.67:1 — WCAG AA (normal text) passes
Contrast matrix
| fg \ bg | ##213B4E | #FFFFFF | #000000 | ##FFFFFF |
|---|---|---|---|---|
| ##213B4E | 1.00 | 11.67 | 1.80 | 11.67 |
| #FFFFFF | 11.67 | 1.00 | 21.00 | 1.00 |
| #000000 | 1.80 | 21.00 | 1.00 | 21.00 |
| ##FFFFFF | 11.67 | 1.00 | 21.00 | 1.00 |
Color blindness preview
Protanopia (red-blind)
#333B4F
Deuteranopia (green-blind)
#2D364E
Tritanopia (blue-blind)
#074041
Achromatopsia (no color)
#383838
Design tokens & code
CSS
--color: #213b4e; /* rgb */ color: rgb(33, 59, 78); /* oklch */ color: oklch(34.0% 0.046 241.6);
Tailwind
colors: {
custom: {
50: '#60707f',
500: '#213b4e',
950: '#000000',
},
}SCSS
$custom: #213b4e; $custom-light: #60707f; $custom-dark: #000000;
JSON
{
"hex": "#213b4e",
"rgb": {
"r": 33,
"g": 59,
"b": 78
},
"hsl": {
"h": 205.333,
"s": 40.541,
"l": 21.765
},
"oklch": {
"l": 0.34038,
"c": 0.04639,
"h": 241.6
},
"luminance": 0.04001
}Semantic roles & 50–950 ramp
primary
#213B4E
secondary
#826149
accent
#8A57D0
background
#F5F6F7
surface
#EAECEE
border
#C6C7C9
text
#05070A
muted
#797A7C