#25638B#25638B
#25638B is a mid, moderate cyan. Relative luminance 0.112; OKLCH L 47.9% C 0.090 H 240.8°. Best body text is #FFFFFF at 6.49:1 contrast (WCAG AA passes).
Color values
| HEX | #25638B |
|---|---|
| RGB | rgb(37, 99, 139) |
| HSL | hsl(204, 58%, 35%) |
| HSV | hsv(204, 73%, 55%) |
| CMYK | cmyk(73.4%, 28.8%, 0%, 45.5%) |
| CIE-LAB | lab(39.88, -5.75, -27.82) |
| CIE-LCH | lch(39.88, 28.41, 258.32°) |
| OKLab | oklab(47.89% -0.0439 -0.0786) |
| OKLCH | oklch(47.89% 0.09 240.8) |
| XYZ | xyz(9.8832, 11.1800, 26.0582) |
| Luminance | 0.1118 (WCAG relative) |
| Temperature | cool |
| Family | cyan |
Closest named colors
Ugly Blue
#31668A
ΔE00 1.56
Peacock Blue
#016795
ΔE00 2.46
Denim (survey)
#3B638C
ΔE00 3.93
Light Navy Blue
#2E5A88
ΔE00 4.86
Deep Sea Blue
#015482
ΔE00 5.32
Ocean Blue (survey)
#03719C
ΔE00 5.65
Perceptual scales
Shades
Tints
Tones
OKLCH scale
Color harmonies
complementary
#25638B #8B4D25
analogous
#258B80 #25638B #25308B
triadic
#25638B #8B2563 #638B25
tetradic
#25638B #80258B #8B4D25 #308B25
square
#25638B #80258B #8B4D25 #308B25
split-complementary
#25638B #8B2530 #8B8025
monochromatic
#0B1E2A #18415B #25638B #3285BB #58A2D3
Accessibility & contrast
On white
6.49
#25638B on #FFFFFF
AA ✓AA large ✓AAA ✗
On black
3.24
#25638B on #000000
AA ✗AA large ✓AAA ✗
Best text color
#FFFFFF on #25638B
6.49:1 — WCAG AA (normal text) passes
Contrast matrix
| fg \ bg | ##25638B | #FFFFFF | #000000 | ##FFFFFF |
|---|---|---|---|---|
| ##25638B | 1.00 | 6.49 | 3.24 | 6.49 |
| #FFFFFF | 6.49 | 1.00 | 21.00 | 1.00 |
| #000000 | 3.24 | 21.00 | 1.00 | 21.00 |
| ##FFFFFF | 6.49 | 1.00 | 21.00 | 1.00 |
Color blindness preview
Protanopia (red-blind)
#51638D
Deuteranopia (green-blind)
#435A8A
Tritanopia (blue-blind)
#006D71
Achromatopsia (no color)
#5E5E5E
Design tokens & code
CSS
--color: #25638b; /* rgb */ color: rgb(37, 99, 139); /* oklch */ color: oklch(47.9% 0.090 240.8);
Tailwind
colors: {
custom: {
50: '#6d8fad',
500: '#25638b',
950: '#000000',
},
}SCSS
$custom: #25638b; $custom-light: #6d8fad; $custom-dark: #000000;
JSON
{
"hex": "#25638b",
"rgb": {
"r": 37,
"g": 99,
"b": 139
},
"hsl": {
"h": 203.529,
"s": 57.955,
"l": 34.51
},
"oklch": {
"l": 0.47886,
"c": 0.08999,
"h": 240.8
},
"luminance": 0.11181
}Semantic roles & 50–950 ramp
primary
#25638B
secondary
#B77B55
accent
#8347E1
background
#F7F8FA
surface
#EDF0F4
border
#C8CBCE
text
#080C10
muted
#7B7D7F