#2558C6#2558C6

#2558C6 is a mid, vivid blue. Relative luminance 0.115; OKLCH L 49.4% C 0.181 H 262.9°. Best body text is #FFFFFF at 6.38:1 contrast (WCAG AA passes).

Color values

HEX	#2558C6
RGB	rgb(37, 88, 198)
HSL	hsl(221, 69%, 46%)
HSV	hsv(221, 81%, 78%)
CMYK	cmyk(81.3%, 55.6%, 0%, 22.4%)
CIE-LAB	lab(40.33, 24.03, -62.04)
CIE-LCH	lch(40.33, 66.53, 291.17°)
OKLab	oklab(49.41% -0.0225 -0.1791)
OKLCH	oklch(49.41% 0.181 262.9)
XYZ	xyz(14.4421, 11.4482, 54.8637)
Luminance	0.1145 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#2558C6 #C69325

analogous

#25A8C6 #2558C6 #4225C6

triadic

#2558C6 #C62558 #58C625

tetradic

#2558C6 #C625A8 #C69325 #25C642

square

#2558C6 #C625A8 #C69325 #25C642

split-complementary

#2558C6 #C64225 #A8C625

monochromatic

#122A5F #1B4192 #2558C6 #4B79DD #7EA0E7

Accessibility & contrast

On white

6.38

#2558C6 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.29

#2558C6 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #2558C6

6.38:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2558C6	#FFFFFF	#000000	##FFFFFF
##2558C6	1.00	6.38	3.29	6.38
#FFFFFF	6.38	1.00	21.00	1.00
#000000	3.29	21.00	1.00	21.00
##FFFFFF	6.38	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0067CA

Deuteranopia (green-blind)

#0058C4

Tritanopia (blue-blind)

#007386

Achromatopsia (no color)

#5F5F5F

Design tokens & code

CSS

--color: #2558c6;
/* rgb */ color: rgb(37, 88, 198);
/* oklch */ color: oklch(49.4% 0.181 262.9);

Tailwind

colors: {
  custom: {
    50: '#7b86d8',
    500: '#2558c6',
    950: '#000000',
  },
}

SCSS

$custom: #2558c6;
$custom-light: #7b86d8;
$custom-dark: #000000;

JSON

{
  "hex": "#2558c6",
  "rgb": {
    "r": 37,
    "g": 88,
    "b": 198
  },
  "hsl": {
    "h": 220.994,
    "s": 68.511,
    "l": 46.078
  },
  "oklch": {
    "l": 0.49406,
    "c": 0.18052,
    "h": 262.9
  },
  "luminance": 0.1145
}

Semantic roles & 50–950 ramp

primary

#2558C6

secondary

#CFB377

accent

#B43CEB

background

#F8F8FD

surface

#EFEFFA

border

#CACAD3

text

#0B0B15

muted

#7C7C83

Preview Lab

Preview with #2558C6

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

Preview Lab → · Contrast checker → · Palette generator →