#283A4E#283A4E
#283A4E is a dark, muted cyan. Relative luminance 0.040; OKLCH L 34.2% C 0.042 H 251.7°. Best body text is #FFFFFF at 11.63:1 contrast (WCAG AA passes).
Color values
| HEX | #283A4E |
|---|---|
| RGB | rgb(40, 58, 78) |
| HSL | hsl(212, 32%, 23%) |
| HSV | hsv(212, 49%, 31%) |
| CMYK | cmyk(48.7%, 25.6%, 0%, 69.4%) |
| CIE-LAB | lab(23.76, -0.97, -14.46) |
| CIE-LCH | lch(23.76, 14.49, 266.15°) |
| OKLab | oklab(34.22% -0.0133 -0.0402) |
| OKLCH | oklch(34.22% 0.042 251.7) |
| XYZ | xyz(3.7628, 4.0270, 7.7853) |
| Luminance | 0.0403 (WCAG relative) |
| Temperature | cool |
| Family | cyan |
Closest named colors
Dark Blue Grey
#1F3B4D
ΔE00 3.98
Dark Grey Blue
#29465B
ΔE00 4.95
Dark Slate Blue
#214761
ΔE00 5.92
Charcoal
#36454F
ΔE00 6.28
Dark
#1B2431
ΔE00 7.52
Marine Blue
#01386A
ΔE00 7.71
Perceptual scales
Shades
Tints
Tones
OKLCH scale
Color harmonies
complementary
#283A4E #4E3C28
analogous
#284D4E #283A4E #29284E
triadic
#283A4E #4E283A #3A4E28
tetradic
#283A4E #4E284D #4E3C28 #284E29
square
#283A4E #4E284D #4E3C28 #284E29
split-complementary
#283A4E #4E2928 #4D4E28
monochromatic
#0A0F14 #131C26 #283A4E #3D5876 #51769F
Accessibility & contrast
On white
11.63
#283A4E on #FFFFFF
AA ✓AA large ✓AAA ✓
On black
1.81
#283A4E on #000000
AA ✗AA large ✗AAA ✗
Best text color
#FFFFFF on #283A4E
11.63:1 — WCAG AA (normal text) passes
Contrast matrix
| fg \ bg | ##283A4E | #FFFFFF | #000000 | ##FFFFFF |
|---|---|---|---|---|
| ##283A4E | 1.00 | 11.63 | 1.81 | 11.63 |
| #FFFFFF | 11.63 | 1.00 | 21.00 | 1.00 |
| #000000 | 1.81 | 21.00 | 1.00 | 21.00 |
| ##FFFFFF | 11.63 | 1.00 | 21.00 | 1.00 |
Color blindness preview
Protanopia (red-blind)
#323B4F
Deuteranopia (green-blind)
#2E374E
Tritanopia (blue-blind)
#193F41
Achromatopsia (no color)
#393939
Design tokens & code
CSS
--color: #283a4e; /* rgb */ color: rgb(40, 58, 78); /* oklch */ color: oklch(34.2% 0.042 251.7);
Tailwind
colors: {
custom: {
50: '#64707f',
500: '#283a4e',
950: '#000000',
},
}SCSS
$custom: #283a4e; $custom-light: #64707f; $custom-dark: #000000;
JSON
{
"hex": "#283a4e",
"rgb": {
"r": 40,
"g": 58,
"b": 78
},
"hsl": {
"h": 211.579,
"s": 32.203,
"l": 23.137
},
"oklch": {
"l": 0.34219,
"c": 0.04238,
"h": 251.7
},
"luminance": 0.04027
}Semantic roles & 50–950 ramp
primary
#283A4E
secondary
#816A51
accent
#975FC8
background
#F6F6F7
surface
#EBECEE
border
#C6C7C9
text
#05070A
muted
#7A7A7C