#2558A7#2558A7

#2558A7 is a mid, vivid blue. Relative luminance 0.102; OKLCH L 47.0% C 0.139 H 259.1°. Best body text is #FFFFFF at 6.92:1 contrast (WCAG AA passes).

Color values

HEX	#2558A7
RGB	rgb(37, 88, 167)
HSL	hsl(216, 64%, 40%)
HSV	hsv(216, 78%, 65%)
CMYK	cmyk(77.8%, 47.3%, 0%, 34.5%)
CIE-LAB	lab(38.13, 11.99, -47.39)
CIE-LCH	lch(38.13, 48.88, 284.20°)
OKLab	oklab(47.04% -0.0262 -0.136)
OKLCH	oklch(47.04% 0.139 259.1)
XYZ	xyz(11.2252, 10.1615, 37.9215)
Luminance	0.1016 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#2558A7 #A77425

analogous

#2599A7 #2558A7 #3325A7

triadic

#2558A7 #A72558 #58A725

tetradic

#2558A7 #A72599 #A77425 #25A733

square

#2558A7 #A72599 #A77425 #25A733

split-complementary

#2558A7 #A73325 #99A725

monochromatic

#0F2343 #1A3E75 #2558A7 #3774D3 #6997DE

Accessibility & contrast

On white

6.92

#2558A7 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.03

#2558A7 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #2558A7

6.92:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2558A7	#FFFFFF	#000000	##FFFFFF
##2558A7	1.00	6.92	3.03	6.92
#FFFFFF	6.92	1.00	21.00	1.00
#000000	3.03	21.00	1.00	21.00
##FFFFFF	6.92	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#2D60AA

Deuteranopia (green-blind)

#0954A5

Tritanopia (blue-blind)

#006B77

Achromatopsia (no color)

#5A5A5A

Design tokens & code

CSS

--color: #2558a7;
/* rgb */ color: rgb(37, 88, 167);
/* oklch */ color: oklch(47.0% 0.139 259.1);

Tailwind

colors: {
  custom: {
    50: '#7386c2',
    500: '#2558a7',
    950: '#000000',
  },
}

SCSS

$custom: #2558a7;
$custom-light: #7386c2;
$custom-dark: #000000;

JSON

{
  "hex": "#2558a7",
  "rgb": {
    "r": 37,
    "g": 88,
    "b": 167
  },
  "hsl": {
    "h": 216.462,
    "s": 63.725,
    "l": 40
  },
  "oklch": {
    "l": 0.47036,
    "c": 0.13853,
    "h": 259.1
  },
  "luminance": 0.10163
}

Semantic roles & 50–950 ramp

primary

#2558A7

secondary

#C49E64

accent

#A641E7

background

#F7F8FC

surface

#EEEFF8

border

#C9CAD1

text

#090B12

muted

#7B7C81

Preview Lab

Preview with #2558A7

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

Preview Lab → · Contrast checker → · Palette generator →