#2550B6#2550B6

#2550B6 is a mid, vivid blue. Relative luminance 0.095; OKLCH L 46.5% C 0.169 H 263.8°. Best body text is #FFFFFF at 7.24:1 contrast (WCAG AA passes).

Color values

HEX	#2550B6
RGB	rgb(37, 80, 182)
HSL	hsl(222, 66%, 43%)
HSV	hsv(222, 80%, 71%)
CMYK	cmyk(79.7%, 56%, 0%, 28.6%)
CIE-LAB	lab(36.94, 23.14, -58.19)
CIE-LCH	lch(36.94, 62.62, 291.68°)
OKLab	oklab(46.47% -0.0183 -0.1679)
OKLCH	oklch(46.47% 0.169 263.8)
XYZ	xyz(12.0721, 9.5066, 45.4456)
Luminance	0.0951 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#2550B6 #B68B25

analogous

#2598B6 #2550B6 #4325B6

triadic

#2550B6 #B62550 #50B625

tetradic

#2550B6 #B62598 #B68B25 #25B643

square

#2550B6 #B62598 #B68B25 #25B643

split-complementary

#2550B6 #B64325 #98B625

monochromatic

#102350 #1B3A83 #2550B6 #406DD8 #7394E3

Accessibility & contrast

On white

7.24

#2550B6 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.90

#2550B6 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #2550B6

7.24:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2550B6	#FFFFFF	#000000	##FFFFFF
##2550B6	1.00	7.24	2.90	7.24
#FFFFFF	7.24	1.00	21.00	1.00
#000000	2.90	21.00	1.00	21.00
##FFFFFF	7.24	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#005EBA

Deuteranopia (green-blind)

#0051B4

Tritanopia (blue-blind)

#00697B

Achromatopsia (no color)

#575757

Design tokens & code

CSS

--color: #2550b6;
/* rgb */ color: rgb(37, 80, 182);
/* oklch */ color: oklch(46.5% 0.169 263.8);

Tailwind

colors: {
  custom: {
    50: '#7780cd',
    500: '#2550b6',
    950: '#000000',
  },
}

SCSS

$custom: #2550b6;
$custom-light: #7780cd;
$custom-dark: #000000;

JSON

{
  "hex": "#2550b6",
  "rgb": {
    "r": 37,
    "g": 80,
    "b": 182
  },
  "hsl": {
    "h": 222.207,
    "s": 66.21,
    "l": 42.941
  },
  "oklch": {
    "l": 0.46468,
    "c": 0.16895,
    "h": 263.8
  },
  "luminance": 0.09508
}

Semantic roles & 50–950 ramp

primary

#2550B6

secondary

#CAAE6D

accent

#B73FE9

background

#F7F7FC

surface

#EEEEF9

border

#C9C9D2

text

#0A0A13

muted

#7C7C82

Preview Lab

Preview with #2550B6

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

Preview Lab → · Contrast checker → · Palette generator →