#256B8B#256B8B
#256B8B is a mid, moderate cyan. Relative luminance 0.128; OKLCH L 49.9% C 0.085 H 232.0°. Best body text is #FFFFFF at 5.91:1 contrast (WCAG AA passes).
Color values
| HEX | #256B8B |
|---|---|
| RGB | rgb(37, 107, 139) |
| HSL | hsl(199, 58%, 35%) |
| HSV | hsv(199, 73%, 55%) |
| CMYK | cmyk(73.4%, 23%, 0%, 45.5%) |
| CIE-LAB | lab(42.42, -10.53, -23.87) |
| CIE-LCH | lch(42.42, 26.09, 246.20°) |
| OKLab | oklab(49.9% -0.0523 -0.0671) |
| OKLCH | oklch(49.9% 0.085 232) |
| XYZ | xyz(10.6790, 12.7716, 26.3234) |
| Luminance | 0.1277 (WCAG relative) |
| Temperature | cool |
| Family | cyan |
Closest named colors
Ocean Blue (survey)
#03719C
ΔE00 3.39
Ugly Blue
#31668A
ΔE00 3.74
Sea Blue
#047495
ΔE00 3.82
Peacock Blue
#016795
ΔE00 3.96
Metallic Blue
#4F738E
ΔE00 6.28
Cerulean
#007BA7
ΔE00 6.35
Perceptual scales
Shades
Tints
Tones
OKLCH scale
Color harmonies
complementary
#256B8B #8B4525
analogous
#258B78 #256B8B #25388B
triadic
#256B8B #8B256B #6B8B25
tetradic
#256B8B #78258B #8B4525 #388B25
square
#256B8B #78258B #8B4525 #388B25
split-complementary
#256B8B #8B2538 #8B7825
monochromatic
#0B212A #18465B #256B8B #3290BB #58ACD3
Accessibility & contrast
On white
5.91
#256B8B on #FFFFFF
AA ✓AA large ✓AAA ✗
On black
3.55
#256B8B on #000000
AA ✗AA large ✓AAA ✗
Best text color
#FFFFFF on #256B8B
5.91:1 — WCAG AA (normal text) passes
Contrast matrix
| fg \ bg | ##256B8B | #FFFFFF | #000000 | ##FFFFFF |
|---|---|---|---|---|
| ##256B8B | 1.00 | 5.91 | 3.55 | 5.91 |
| #FFFFFF | 5.91 | 1.00 | 21.00 | 1.00 |
| #000000 | 3.55 | 21.00 | 1.00 | 21.00 |
| ##FFFFFF | 5.91 | 1.00 | 21.00 | 1.00 |
Color blindness preview
Protanopia (red-blind)
#5B6A8D
Deuteranopia (green-blind)
#4D608B
Tritanopia (blue-blind)
#007476
Achromatopsia (no color)
#646464
Design tokens & code
CSS
--color: #256b8b; /* rgb */ color: rgb(37, 107, 139); /* oklch */ color: oklch(49.9% 0.085 232.0);
Tailwind
colors: {
custom: {
50: '#6e95ad',
500: '#256b8b',
950: '#000000',
},
}SCSS
$custom: #256b8b; $custom-light: #6e95ad; $custom-dark: #000000;
JSON
{
"hex": "#256b8b",
"rgb": {
"r": 37,
"g": 107,
"b": 139
},
"hsl": {
"h": 198.824,
"s": 57.955,
"l": 34.51
},
"oklch": {
"l": 0.49901,
"c": 0.08507,
"h": 232
},
"luminance": 0.12773
}Semantic roles & 50–950 ramp
primary
#256B8B
secondary
#B77455
accent
#7747E1
background
#F7F9FA
surface
#EDF1F4
border
#C8CBCE
text
#080D10
muted
#7B7E7F