#2557E2#2557E2

#2557E2 is a mid, highly saturated blue. Relative luminance 0.127; OKLCH L 51.6% C 0.218 H 264.5°. Best body text is #FFFFFF at 5.93:1 contrast (WCAG AA passes).

Color values

HEX	#2557E2
RGB	rgb(37, 87, 226)
HSL	hsl(224, 77%, 52%)
HSV	hsv(224, 84%, 89%)
CMYK	cmyk(83.6%, 61.5%, 0%, 11.4%)
CIE-LAB	lab(42.31, 35.25, -74.87)
CIE-LCH	lch(42.31, 82.76, 295.21°)
OKLab	oklab(51.59% -0.0208 -0.2168)
OKLCH	oklch(51.59% 0.218 264.5)
XYZ	xyz(17.8937, 12.6985, 73.4447)
Luminance	0.1270 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#2557E2 #E2B025

analogous

#25B6E2 #2557E2 #5225E2

triadic

#2557E2 #E22557 #57E225

tetradic

#2557E2 #E225B6 #E2B025 #25E252

square

#2557E2 #E225B6 #E2B025 #25E252

split-complementary

#2557E2 #E25225 #B6E225

monochromatic

#112D7C #1841B2 #2557E2 #5B81E9 #91AAF0

Accessibility & contrast

On white

5.93

#2557E2 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.54

#2557E2 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #2557E2

5.93:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2557E2	#FFFFFF	#000000	##FFFFFF
##2557E2	1.00	5.93	3.54	5.93
#FFFFFF	5.93	1.00	21.00	1.00
#000000	3.54	21.00	1.00	21.00
##FFFFFF	5.93	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#006DE7

Deuteranopia (green-blind)

#005BDF

Tritanopia (blue-blind)

#007B94

Achromatopsia (no color)

#646464

Design tokens & code

CSS

--color: #2557e2;
/* rgb */ color: rgb(37, 87, 226);
/* oklch */ color: oklch(51.6% 0.218 264.5);

Tailwind

colors: {
  custom: {
    50: '#8286ec',
    500: '#2557e2',
    950: '#000000',
  },
}

SCSS

$custom: #2557e2;
$custom-light: #8286ec;
$custom-dark: #000000;

JSON

{
  "hex": "#2557e2",
  "rgb": {
    "r": 37,
    "g": 87,
    "b": 226
  },
  "hsl": {
    "h": 224.127,
    "s": 76.518,
    "l": 51.569
  },
  "oklch": {
    "l": 0.51585,
    "c": 0.21779,
    "h": 264.5
  },
  "luminance": 0.12701
}

Semantic roles & 50–950 ramp

primary

#2557E2

secondary

#DBC588

accent

#C135F3

background

#F8F8FE

surface

#F0EFFD

border

#CBCAD5

text

#0D0B16

muted

#7D7C84

Preview Lab

Preview with #2557E2

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

Preview Lab → · Contrast checker → · Palette generator →