#2551E2#2551E2

#2551E2 is a mid, highly saturated blue. Relative luminance 0.118; OKLCH L 50.5% C 0.225 H 265.4°. Best body text is #FFFFFF at 6.26:1 contrast (WCAG AA passes).

Color values

HEX	#2551E2
RGB	rgb(37, 81, 226)
HSL	hsl(226, 77%, 52%)
HSV	hsv(226, 84%, 89%)
CMYK	cmyk(83.6%, 64.2%, 0%, 11.4%)
CIE-LAB	lab(40.84, 39.04, -77.27)
CIE-LCH	lch(40.84, 86.57, 296.81°)
OKLab	oklab(50.5% -0.018 -0.2239)
OKLCH	oklch(50.5% 0.225 265.4)
XYZ	xyz(17.4280, 11.7670, 73.2895)
Luminance	0.1177 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#2551E2 #E2B625

analogous

#25AFE2 #2551E2 #5825E2

triadic

#2551E2 #E22551 #51E225

tetradic

#2551E2 #E225AF #E2B625 #25E258

square

#2551E2 #E225AF #E2B625 #25E258

split-complementary

#2551E2 #E25825 #AFE225

monochromatic

#112A7C #183CB2 #2551E2 #5B7CE9 #91A7F0

Accessibility & contrast

On white

6.26

#2551E2 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.35

#2551E2 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #2551E2

6.26:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2551E2	#FFFFFF	#000000	##FFFFFF
##2551E2	1.00	6.26	3.35	6.26
#FFFFFF	6.26	1.00	21.00	1.00
#000000	3.35	21.00	1.00	21.00
##FFFFFF	6.26	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0069E7

Deuteranopia (green-blind)

#0058DF

Tritanopia (blue-blind)

#007892

Achromatopsia (no color)

#606060

Design tokens & code

CSS

--color: #2551e2;
/* rgb */ color: rgb(37, 81, 226);
/* oklch */ color: oklch(50.5% 0.225 265.4);

Tailwind

colors: {
  custom: {
    50: '#8281ec',
    500: '#2551e2',
    950: '#000000',
  },
}

SCSS

$custom: #2551e2;
$custom-light: #8281ec;
$custom-dark: #000000;

JSON

{
  "hex": "#2551e2",
  "rgb": {
    "r": 37,
    "g": 81,
    "b": 226
  },
  "hsl": {
    "h": 226.032,
    "s": 76.518,
    "l": 51.569
  },
  "oklch": {
    "l": 0.50504,
    "c": 0.22459,
    "h": 265.4
  },
  "luminance": 0.11769
}

Semantic roles & 50–950 ramp

primary

#2551E2

secondary

#DBC888

accent

#C735F3

background

#F9F7FE

surface

#F1EEFD

border

#CBC9D5

text

#0D0A16

muted

#7E7C84

Preview Lab

Preview with #2551E2

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

Preview Lab → · Contrast checker → · Palette generator →