#2457A4#2457A4

#2457A4 is a mid, vivid blue. Relative luminance 0.099; OKLCH L 46.6% C 0.136 H 258.7°. Best body text is #FFFFFF at 7.06:1 contrast (WCAG AA passes).

Color values

HEX	#2457A4
RGB	rgb(36, 87, 164)
HSL	hsl(216, 64%, 39%)
HSV	hsv(216, 78%, 64%)
CMYK	cmyk(78%, 47%, 0%, 35.7%)
CIE-LAB	lab(37.61, 11.36, -46.44)
CIE-LCH	lch(37.61, 47.81, 283.74°)
OKLab	oklab(46.56% -0.0266 -0.1333)
OKLCH	oklch(46.56% 0.136 258.7)
XYZ	xyz(10.8341, 9.8705, 36.4490)
Luminance	0.0987 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#2457A4 #A47124

analogous

#2497A4 #2457A4 #3124A4

triadic

#2457A4 #A42457 #57A424

tetradic

#2457A4 #A42497 #A47124 #24A431

square

#2457A4 #A42497 #A47124 #24A431

split-complementary

#2457A4 #A43124 #97A424

monochromatic

#0E2240 #193C72 #2457A4 #3372D2 #6595DD

Accessibility & contrast

On white

7.06

#2457A4 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.97

#2457A4 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #2457A4

7.06:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2457A4	#FFFFFF	#000000	##FFFFFF
##2457A4	1.00	7.06	2.97	7.06
#FFFFFF	7.06	1.00	21.00	1.00
#000000	2.97	21.00	1.00	21.00
##FFFFFF	7.06	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#2E5FA7

Deuteranopia (green-blind)

#0D53A2

Tritanopia (blue-blind)

#006975

Achromatopsia (no color)

#585858

Design tokens & code

CSS

--color: #2457a4;
/* rgb */ color: rgb(36, 87, 164);
/* oklch */ color: oklch(46.6% 0.136 258.7);

Tailwind

colors: {
  custom: {
    50: '#7285bf',
    500: '#2457a4',
    950: '#000000',
  },
}

SCSS

$custom: #2457a4;
$custom-light: #7285bf;
$custom-dark: #000000;

JSON

{
  "hex": "#2457a4",
  "rgb": {
    "r": 36,
    "g": 87,
    "b": 164
  },
  "hsl": {
    "h": 216.094,
    "s": 64,
    "l": 39.216
  },
  "oklch": {
    "l": 0.46562,
    "c": 0.13589,
    "h": 258.7
  },
  "luminance": 0.09872
}

Semantic roles & 50–950 ramp

primary

#2457A4

secondary

#C39C61

accent

#A541E7

background

#F7F8FB

surface

#EDEFF7

border

#C8CAD0

text

#090B12

muted

#7B7C81

Preview Lab

Preview with #2457A4

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

Preview Lab → · Contrast checker → · Palette generator →