#255EAF#255EAF
#255EAF is a mid, vivid blue. Relative luminance 0.115; OKLCH L 48.9% C 0.142 H 257.9°. Best body text is #FFFFFF at 6.37:1 contrast (WCAG AA passes).
Color values
| HEX | #255EAF |
|---|---|
| RGB | rgb(37, 94, 175) |
| HSL | hsl(215, 65%, 42%) |
| HSV | hsv(215, 79%, 69%) |
| CMYK | cmyk(78.9%, 46.3%, 0%, 31.4%) |
| CIE-LAB | lab(40.40, 11.18, -48.48) |
| CIE-LCH | lch(40.40, 49.75, 282.99°) |
| OKLab | oklab(48.95% -0.0298 -0.1391) |
| OKLCH | oklch(48.95% 0.142 257.9) |
| XYZ | xyz(12.5007, 11.4924, 42.1085) |
| Luminance | 0.1149 (WCAG relative) |
| Temperature | cool |
| Family | blue |
Closest named colors
Denim
#1560BD
ΔE00 1.72
Denim Blue
#3B5B92
ΔE00 4.26
Sapphire
#0F52BA
ΔE00 4.38
Mid Blue
#276AB3
ΔE00 4.44
Denim (survey)
#3B638C
ΔE00 4.52
Light Navy Blue
#2E5A88
ΔE00 4.65
Perceptual scales
Shades
Tints
Tones
OKLCH scale
Color harmonies
complementary
#255EAF #AF7625
analogous
#25A3AF #255EAF #3125AF
triadic
#255EAF #AF255E #5EAF25
tetradic
#255EAF #AF25A3 #AF7625 #25AF31
square
#255EAF #AF25A3 #AF7625 #25AF31
split-complementary
#255EAF #AF3125 #A3AF25
monochromatic
#10284A #1A437C #255EAF #3C7BD6 #6E9DE0
Accessibility & contrast
On white
6.37
#255EAF on #FFFFFF
AA ✓AA large ✓AAA ✗
On black
3.30
#255EAF on #000000
AA ✗AA large ✓AAA ✗
Best text color
#FFFFFF on #255EAF
6.37:1 — WCAG AA (normal text) passes
Contrast matrix
| fg \ bg | ##255EAF | #FFFFFF | #000000 | ##FFFFFF |
|---|---|---|---|---|
| ##255EAF | 1.00 | 6.37 | 3.30 | 6.37 |
| #FFFFFF | 6.37 | 1.00 | 21.00 | 1.00 |
| #000000 | 3.30 | 21.00 | 1.00 | 21.00 |
| ##FFFFFF | 6.37 | 1.00 | 21.00 | 1.00 |
Color blindness preview
Protanopia (red-blind)
#3366B2
Deuteranopia (green-blind)
#1159AD
Tritanopia (blue-blind)
#00717E
Achromatopsia (no color)
#5F5F5F
Design tokens & code
CSS
--color: #255eaf; /* rgb */ color: rgb(37, 94, 175); /* oklch */ color: oklch(48.9% 0.142 257.9);
Tailwind
colors: {
custom: {
50: '#758bc7',
500: '#255eaf',
950: '#000000',
},
}SCSS
$custom: #255eaf; $custom-light: #758bc7; $custom-dark: #000000;
JSON
{
"hex": "#255eaf",
"rgb": {
"r": 37,
"g": 94,
"b": 175
},
"hsl": {
"h": 215.217,
"s": 65.094,
"l": 41.569
},
"oklch": {
"l": 0.4895,
"c": 0.14227,
"h": 257.9
},
"luminance": 0.11494
}Semantic roles & 50–950 ramp
primary
#255EAF
secondary
#C7A069
accent
#A340E8
background
#F7F8FC
surface
#EEF0F8
border
#C9CBD1
text
#0A0B13
muted
#7C7C82