#254F8B#254F8B
#254F8B is a dark, moderate blue. Relative luminance 0.078; OKLCH L 43.0% C 0.110 H 257.7°. Best body text is #FFFFFF at 8.17:1 contrast (WCAG AA passes).
Color values
| HEX | #254F8B |
|---|---|
| RGB | rgb(37, 79, 139) |
| HSL | hsl(215, 58%, 35%) |
| HSV | hsv(215, 73%, 55%) |
| CMYK | cmyk(73.4%, 43.2%, 0%, 45.5%) |
| CIE-LAB | lab(33.67, 7.01, -37.65) |
| CIE-LCH | lch(33.67, 38.30, 280.55°) |
| OKLab | oklab(43.01% -0.0235 -0.1076) |
| OKLCH | oklch(43.01% 0.11 257.7) |
| XYZ | xyz(8.2174, 7.8485, 25.5029) |
| Luminance | 0.0785 (WCAG relative) |
| Temperature | cool |
| Family | blue |
Closest named colors
Dusk Blue
#26538D
ΔE00 1.43
Cobalt (survey)
#1E488F
ΔE00 2.51
Light Navy
#155084
ΔE00 2.94
Light Navy Blue
#2E5A88
ΔE00 4.06
Denim Blue
#3B5B92
ΔE00 4.38
Twilight Blue
#0A437A
ΔE00 4.45
Perceptual scales
Shades
Tints
Tones
OKLCH scale
Color harmonies
complementary
#254F8B #8B6125
analogous
#25828B #254F8B #2E258B
triadic
#254F8B #8B254F #4F8B25
tetradic
#254F8B #8B2582 #8B6125 #258B2E
square
#254F8B #8B2582 #8B6125 #258B2E
split-complementary
#254F8B #8B2E25 #828B25
monochromatic
#0B182A #18345B #254F8B #326ABB #588AD3
Accessibility & contrast
On white
8.17
#254F8B on #FFFFFF
AA ✓AA large ✓AAA ✓
On black
2.57
#254F8B on #000000
AA ✗AA large ✗AAA ✗
Best text color
#FFFFFF on #254F8B
8.17:1 — WCAG AA (normal text) passes
Contrast matrix
| fg \ bg | ##254F8B | #FFFFFF | #000000 | ##FFFFFF |
|---|---|---|---|---|
| ##254F8B | 1.00 | 8.17 | 2.57 | 8.17 |
| #FFFFFF | 8.17 | 1.00 | 21.00 | 1.00 |
| #000000 | 2.57 | 21.00 | 1.00 | 21.00 |
| ##FFFFFF | 8.17 | 1.00 | 21.00 | 1.00 |
Color blindness preview
Protanopia (red-blind)
#32548D
Deuteranopia (green-blind)
#214B8A
Tritanopia (blue-blind)
#005D66
Achromatopsia (no color)
#4F4F4F
Design tokens & code
CSS
--color: #254f8b; /* rgb */ color: rgb(37, 79, 139); /* oklch */ color: oklch(43.0% 0.110 257.7);
Tailwind
colors: {
custom: {
50: '#6d7fad',
500: '#254f8b',
950: '#000000',
},
}SCSS
$custom: #254f8b; $custom-light: #6d7fad; $custom-dark: #000000;
JSON
{
"hex": "#254f8b",
"rgb": {
"r": 37,
"g": 79,
"b": 139
},
"hsl": {
"h": 215.294,
"s": 57.955,
"l": 34.51
},
"oklch": {
"l": 0.43011,
"c": 0.11011,
"h": 257.7
},
"luminance": 0.07849
}Semantic roles & 50–950 ramp
primary
#254F8B
secondary
#B78F55
accent
#A247E1
background
#F7F7FA
surface
#EDEEF4
border
#C8C9CE
text
#080A10
muted
#7B7C7F