#2558A3#2558A3

#2558A3 is a mid, vivid blue. Relative luminance 0.100; OKLCH L 46.8% C 0.133 H 258.3°. Best body text is #FFFFFF at 6.99:1 contrast (WCAG AA passes).

Color values

HEX	#2558A3
RGB	rgb(37, 88, 163)
HSL	hsl(216, 63%, 39%)
HSV	hsv(216, 77%, 64%)
CMYK	cmyk(77.3%, 46%, 0%, 36.1%)
CIE-LAB	lab(37.87, 10.43, -45.42)
CIE-LCH	lch(37.87, 46.60, 282.93°)
OKLab	oklab(46.75% -0.0269 -0.1302)
OKLCH	oklch(46.75% 0.133 258.3)
XYZ	xyz(10.8611, 10.0159, 36.0041)
Luminance	0.1002 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#2558A3 #A37025

analogous

#2597A3 #2558A3 #3125A3

triadic

#2558A3 #A32558 #58A325

tetradic

#2558A3 #A32597 #A37025 #25A331

square

#2558A3 #A32597 #A37025 #25A331

split-complementary

#2558A3 #A33125 #97A325

monochromatic

#0E223F #1A3D71 #2558A3 #3474D1 #6696DC

Accessibility & contrast

On white

6.99

#2558A3 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.00

#2558A3 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #2558A3

6.99:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2558A3	#FFFFFF	#000000	##FFFFFF
##2558A3	1.00	6.99	3.00	6.99
#FFFFFF	6.99	1.00	21.00	1.00
#000000	3.00	21.00	1.00	21.00
##FFFFFF	6.99	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#315FA6

Deuteranopia (green-blind)

#1554A1

Tritanopia (blue-blind)

#006A75

Achromatopsia (no color)

#595959

Design tokens & code

CSS

--color: #2558a3;
/* rgb */ color: rgb(37, 88, 163);
/* oklch */ color: oklch(46.8% 0.133 258.3);

Tailwind

colors: {
  custom: {
    50: '#7286bf',
    500: '#2558a3',
    950: '#000000',
  },
}

SCSS

$custom: #2558a3;
$custom-light: #7286bf;
$custom-dark: #000000;

JSON

{
  "hex": "#2558a3",
  "rgb": {
    "r": 37,
    "g": 88,
    "b": 163
  },
  "hsl": {
    "h": 215.714,
    "s": 63,
    "l": 39.216
  },
  "oklch": {
    "l": 0.46752,
    "c": 0.133,
    "h": 258.3
  },
  "luminance": 0.10017
}

Semantic roles & 50–950 ramp

primary

#2558A3

secondary

#C29B62

accent

#A442E6

background

#F7F8FB

surface

#EDEFF7

border

#C8CAD0

text

#090B12

muted

#7B7C81

Preview Lab

Preview with #2558A3

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

Preview Lab → · Contrast checker → · Palette generator →