#2457A3#2457A3

#2457A3 is a mid, vivid blue. Relative luminance 0.098; OKLCH L 46.5% C 0.135 H 258.5°. Best body text is #FFFFFF at 7.08:1 contrast (WCAG AA passes).

Color values

HEX	#2457A3
RGB	rgb(36, 87, 163)
HSL	hsl(216, 64%, 39%)
HSV	hsv(216, 78%, 64%)
CMYK	cmyk(77.9%, 46.6%, 0%, 36.1%)
CIE-LAB	lab(37.54, 10.97, -45.95)
CIE-LCH	lch(37.54, 47.24, 283.42°)
OKLab	oklab(46.49% -0.0267 -0.1318)
OKLCH	oklch(46.49% 0.135 258.5)
XYZ	xyz(10.7442, 9.8346, 35.9752)
Luminance	0.0984 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#2457A3 #A37024

analogous

#2497A3 #2457A3 #3124A3

triadic

#2457A3 #A32457 #57A324

tetradic

#2457A3 #A32497 #A37024 #24A331

square

#2457A3 #A32497 #A37024 #24A331

split-complementary

#2457A3 #A33124 #97A324

monochromatic

#0E213F #193C71 #2457A3 #3272D2 #6595DD

Accessibility & contrast

On white

7.08

#2457A3 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.97

#2457A3 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #2457A3

7.08:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2457A3	#FFFFFF	#000000	##FFFFFF
##2457A3	1.00	7.08	2.97	7.08
#FFFFFF	7.08	1.00	21.00	1.00
#000000	2.97	21.00	1.00	21.00
##FFFFFF	7.08	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#2F5FA6

Deuteranopia (green-blind)

#1053A1

Tritanopia (blue-blind)

#006975

Achromatopsia (no color)

#585858

Design tokens & code

CSS

--color: #2457a3;
/* rgb */ color: rgb(36, 87, 163);
/* oklch */ color: oklch(46.5% 0.135 258.5);

Tailwind

colors: {
  custom: {
    50: '#7285bf',
    500: '#2457a3',
    950: '#000000',
  },
}

SCSS

$custom: #2457a3;
$custom-light: #7285bf;
$custom-dark: #000000;

JSON

{
  "hex": "#2457a3",
  "rgb": {
    "r": 36,
    "g": 87,
    "b": 163
  },
  "hsl": {
    "h": 215.906,
    "s": 63.819,
    "l": 39.02
  },
  "oklch": {
    "l": 0.4649,
    "c": 0.1345,
    "h": 258.5
  },
  "luminance": 0.09836
}

Semantic roles & 50–950 ramp

primary

#2457A3

secondary

#C29B60

accent

#A441E7

background

#F7F8FB

surface

#EDEFF7

border

#C8CAD0

text

#090B12

muted

#7B7C81

Preview Lab

Preview with #2457A3

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

Preview Lab → · Contrast checker → · Palette generator →