#2558A9#2558A9

#2558A9 is a mid, vivid blue. Relative luminance 0.102; OKLCH L 47.2% C 0.141 H 259.4°. Best body text is #FFFFFF at 6.89:1 contrast (WCAG AA passes).

Color values

HEX	#2558A9
RGB	rgb(37, 88, 169)
HSL	hsl(217, 64%, 40%)
HSV	hsv(217, 78%, 66%)
CMYK	cmyk(78.1%, 47.9%, 0%, 33.7%)
CIE-LAB	lab(38.26, 12.77, -48.36)
CIE-LCH	lch(38.26, 50.02, 284.79°)
OKLab	oklab(47.18% -0.0259 -0.1389)
OKLCH	oklch(47.18% 0.141 259.4)
XYZ	xyz(11.4115, 10.2360, 38.9027)
Luminance	0.1024 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#2558A9 #A97625

analogous

#259AA9 #2558A9 #3425A9

triadic

#2558A9 #A92558 #58A925

tetradic

#2558A9 #A9259A #A97625 #25A934

square

#2558A9 #A9259A #A97625 #25A934

split-complementary

#2558A9 #A93425 #9AA925

monochromatic

#0F2445 #1A3E77 #2558A9 #3874D3 #6A97DE

Accessibility & contrast

On white

6.89

#2558A9 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.05

#2558A9 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #2558A9

6.89:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2558A9	#FFFFFF	#000000	##FFFFFF
##2558A9	1.00	6.89	3.05	6.89
#FFFFFF	6.89	1.00	21.00	1.00
#000000	3.05	21.00	1.00	21.00
##FFFFFF	6.89	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#2B60AC

Deuteranopia (green-blind)

#0154A7

Tritanopia (blue-blind)

#006B78

Achromatopsia (no color)

#5A5A5A

Design tokens & code

CSS

--color: #2558a9;
/* rgb */ color: rgb(37, 88, 169);
/* oklch */ color: oklch(47.2% 0.141 259.4);

Tailwind

colors: {
  custom: {
    50: '#7486c3',
    500: '#2558a9',
    950: '#000000',
  },
}

SCSS

$custom: #2558a9;
$custom-light: #7486c3;
$custom-dark: #000000;

JSON

{
  "hex": "#2558a9",
  "rgb": {
    "r": 37,
    "g": 88,
    "b": 169
  },
  "hsl": {
    "h": 216.818,
    "s": 64.078,
    "l": 40.392
  },
  "oklch": {
    "l": 0.4718,
    "c": 0.14128,
    "h": 259.4
  },
  "luminance": 0.10237
}

Semantic roles & 50–950 ramp

primary

#2558A9

secondary

#C4A065

accent

#A741E7

background

#F7F8FC

surface

#EEEFF8

border

#C9CAD1

text

#090B12

muted

#7B7C81

Preview Lab

Preview with #2558A9

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

Preview Lab → · Contrast checker → · Palette generator →