#2558BA#2558BA

#2558BA is a mid, vivid blue. Relative luminance 0.109; OKLCH L 48.5% C 0.164 H 261.8°. Best body text is #FFFFFF at 6.60:1 contrast (WCAG AA passes).

Color values

HEX	#2558BA
RGB	rgb(37, 88, 186)
HSL	hsl(219, 67%, 44%)
HSV	hsv(219, 80%, 73%)
CMYK	cmyk(80.1%, 52.7%, 0%, 27.1%)
CIE-LAB	lab(39.44, 19.39, -56.48)
CIE-LCH	lch(39.44, 59.72, 288.95°)
OKLab	oklab(48.46% -0.0236 -0.1628)
OKLCH	oklch(48.46% 0.164 261.8)
XYZ	xyz(13.1124, 10.9164, 47.8608)
Luminance	0.1092 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#2558BA #BA8725

analogous

#25A2BA #2558BA #3C25BA

triadic

#2558BA #BA2558 #58BA25

tetradic

#2558BA #BA25A2 #BA8725 #25BA3C

square

#2558BA #BA25A2 #BA8725 #25BA3C

split-complementary

#2558BA #BA3C25 #A2BA25

monochromatic

#112854 #1B4087 #2558BA #4376DA #769BE4

Accessibility & contrast

On white

6.60

#2558BA on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.18

#2558BA on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #2558BA

6.60:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2558BA	#FFFFFF	#000000	##FFFFFF
##2558BA	1.00	6.60	3.18	6.60
#FFFFFF	6.60	1.00	21.00	1.00
#000000	3.18	21.00	1.00	21.00
##FFFFFF	6.60	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0F64BD

Deuteranopia (green-blind)

#0056B8

Tritanopia (blue-blind)

#007080

Achromatopsia (no color)

#5D5D5D

Design tokens & code

CSS

--color: #2558ba;
/* rgb */ color: rgb(37, 88, 186);
/* oklch */ color: oklch(48.5% 0.164 261.8);

Tailwind

colors: {
  custom: {
    50: '#7886cf',
    500: '#2558ba',
    950: '#000000',
  },
}

SCSS

$custom: #2558ba;
$custom-light: #7886cf;
$custom-dark: #000000;

JSON

{
  "hex": "#2558ba",
  "rgb": {
    "r": 37,
    "g": 88,
    "b": 186
  },
  "hsl": {
    "h": 219.463,
    "s": 66.816,
    "l": 43.725
  },
  "oklch": {
    "l": 0.48455,
    "c": 0.16449,
    "h": 261.8
  },
  "luminance": 0.10918
}

Semantic roles & 50–950 ramp

primary

#2558BA

secondary

#CBAC70

accent

#AF3EEA

background

#F8F8FC

surface

#EFEFF9

border

#CACAD2

text

#0A0B14

muted

#7C7C82

Preview Lab

Preview with #2558BA

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

Preview Lab → · Contrast checker → · Palette generator →