#255EA6#255EA6

#255EA6 is a mid, vivid cyan. Relative luminance 0.112; OKLCH L 48.3% C 0.130 H 255.9°. Best body text is #FFFFFF at 6.50:1 contrast (WCAG AA passes).

Color values

HEX	#255EA6
RGB	rgb(37, 94, 166)
HSL	hsl(213, 64%, 40%)
HSV	hsv(213, 78%, 65%)
CMYK	cmyk(77.7%, 43.4%, 0%, 34.9%)
CIE-LAB	lab(39.83, 7.68, -44.06)
CIE-LCH	lch(39.83, 44.73, 279.89°)
OKLab	oklab(48.33% -0.0316 -0.1261)
OKLCH	oklch(48.33% 0.13 255.9)
XYZ	xyz(11.6460, 11.1505, 37.6075)
Luminance	0.1115 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#255EA6 #A66D25

analogous

#259FA6 #255EA6 #2C25A6

triadic

#255EA6 #A6255E #5EA625

tetradic

#255EA6 #A6259F #A66D25 #25A62C

square

#255EA6 #A6259F #A66D25 #25A62C

split-complementary

#255EA6 #A62C25 #9FA625

monochromatic

#0F2542 #1A4274 #255EA6 #367BD2 #689CDD

Accessibility & contrast

On white

6.50

#255EA6 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.23

#255EA6 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #255EA6

6.50:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##255EA6	#FFFFFF	#000000	##FFFFFF
##255EA6	1.00	6.50	3.23	6.50
#FFFFFF	6.50	1.00	21.00	1.00
#000000	3.23	21.00	1.00	21.00
##FFFFFF	6.50	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#3A64A9

Deuteranopia (green-blind)

#2258A5

Tritanopia (blue-blind)

#006F7A

Achromatopsia (no color)

#5E5E5E

Design tokens & code

CSS

--color: #255ea6;
/* rgb */ color: rgb(37, 94, 166);
/* oklch */ color: oklch(48.3% 0.130 255.9);

Tailwind

colors: {
  custom: {
    50: '#738bc1',
    500: '#255ea6',
    950: '#000000',
  },
}

SCSS

$custom: #255ea6;
$custom-light: #738bc1;
$custom-dark: #000000;

JSON

{
  "hex": "#255ea6",
  "rgb": {
    "r": 37,
    "g": 94,
    "b": 166
  },
  "hsl": {
    "h": 213.488,
    "s": 63.547,
    "l": 39.804
  },
  "oklch": {
    "l": 0.48331,
    "c": 0.13002,
    "h": 255.9
  },
  "luminance": 0.11152
}

Semantic roles & 50–950 ramp

primary

#255EA6

secondary

#C39964

accent

#9E41E7

background

#F7F8FB

surface

#EDF0F7

border

#C8CBD0

text

#090B12

muted

#7B7C81

Preview Lab

Preview with #255EA6

Body copy rendered with the generated semantic roles for this colour.

Preview Lab → · Contrast checker → · Palette generator →