#2457A8#2457A8

#2457A8 is a mid, vivid blue. Relative luminance 0.100; OKLCH L 46.9% C 0.141 H 259.5°. Best body text is #FFFFFF at 6.99:1 contrast (WCAG AA passes).

Color values

HEX	#2457A8
RGB	rgb(36, 87, 168)
HSL	hsl(217, 65%, 40%)
HSV	hsv(217, 79%, 66%)
CMYK	cmyk(78.6%, 48.2%, 0%, 34.1%)
CIE-LAB	lab(37.87, 12.92, -48.40)
CIE-LCH	lch(37.87, 50.09, 284.95°)
OKLab	oklab(46.85% -0.0259 -0.139)
OKLCH	oklch(46.85% 0.141 259.5)
XYZ	xyz(11.2011, 10.0173, 38.3814)
Luminance	0.1002 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#2457A8 #A87524

analogous

#2499A8 #2457A8 #3324A8

triadic

#2457A8 #A82457 #57A824

tetradic

#2457A8 #A82499 #A87524 #24A833

square

#2457A8 #A82499 #A87524 #24A833

split-complementary

#2457A8 #A83324 #99A824

monochromatic

#0E2343 #193D76 #2457A8 #3573D4 #6896DF

Accessibility & contrast

On white

6.99

#2457A8 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.00

#2457A8 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #2457A8

6.99:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2457A8	#FFFFFF	#000000	##FFFFFF
##2457A8	1.00	6.99	3.00	6.99
#FFFFFF	6.99	1.00	21.00	1.00
#000000	3.00	21.00	1.00	21.00
##FFFFFF	6.99	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#2A60AB

Deuteranopia (green-blind)

#0054A6

Tritanopia (blue-blind)

#006A77

Achromatopsia (no color)

#595959

Design tokens & code

CSS

--color: #2457a8;
/* rgb */ color: rgb(36, 87, 168);
/* oklch */ color: oklch(46.9% 0.141 259.5);

Tailwind

colors: {
  custom: {
    50: '#7385c2',
    500: '#2457a8',
    950: '#000000',
  },
}

SCSS

$custom: #2457a8;
$custom-light: #7385c2;
$custom-dark: #000000;

JSON

{
  "hex": "#2457a8",
  "rgb": {
    "r": 36,
    "g": 87,
    "b": 168
  },
  "hsl": {
    "h": 216.818,
    "s": 64.706,
    "l": 40
  },
  "oklch": {
    "l": 0.4685,
    "c": 0.14142,
    "h": 259.5
  },
  "luminance": 0.10019
}

Semantic roles & 50–950 ramp

primary

#2457A8

secondary

#C49F63

accent

#A740E8

background

#F7F8FC

surface

#EEEFF8

border

#C9CAD1

text

#090B12

muted

#7B7C81

Preview Lab

Preview with #2457A8

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

Preview Lab → · Contrast checker → · Palette generator →