#2457A9#2457A9

#2457A9 is a mid, vivid blue. Relative luminance 0.101; OKLCH L 46.9% C 0.143 H 259.6°. Best body text is #FFFFFF at 6.97:1 contrast (WCAG AA passes).

Color values

HEX	#2457A9
RGB	rgb(36, 87, 169)
HSL	hsl(217, 65%, 40%)
HSV	hsv(217, 79%, 66%)
CMYK	cmyk(78.7%, 48.5%, 0%, 33.7%)
CIE-LAB	lab(37.94, 13.32, -48.88)
CIE-LCH	lch(37.94, 50.66, 285.24°)
OKLab	oklab(46.92% -0.0257 -0.1405)
OKLCH	oklch(46.92% 0.143 259.6)
XYZ	xyz(11.2946, 10.0547, 38.8739)
Luminance	0.1006 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#2457A9 #A97624

analogous

#249AA9 #2457A9 #3324A9

triadic

#2457A9 #A92457 #57A924

tetradic

#2457A9 #A9249A #A97624 #24A933

square

#2457A9 #A9249A #A97624 #24A933

split-complementary

#2457A9 #A93324 #9AA924

monochromatic

#0F2344 #193D77 #2457A9 #3673D4 #6896DF

Accessibility & contrast

On white

6.97

#2457A9 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.01

#2457A9 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #2457A9

6.97:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2457A9	#FFFFFF	#000000	##FFFFFF
##2457A9	1.00	6.97	3.01	6.97
#FFFFFF	6.97	1.00	21.00	1.00
#000000	3.01	21.00	1.00	21.00
##FFFFFF	6.97	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#2960AC

Deuteranopia (green-blind)

#0054A7

Tritanopia (blue-blind)

#006B78

Achromatopsia (no color)

#595959

Design tokens & code

CSS

--color: #2457a9;
/* rgb */ color: rgb(36, 87, 169);
/* oklch */ color: oklch(46.9% 0.143 259.6);

Tailwind

colors: {
  custom: {
    50: '#7385c3',
    500: '#2457a9',
    950: '#000000',
  },
}

SCSS

$custom: #2457a9;
$custom-light: #7385c3;
$custom-dark: #000000;

JSON

{
  "hex": "#2457a9",
  "rgb": {
    "r": 36,
    "g": 87,
    "b": 169
  },
  "hsl": {
    "h": 216.992,
    "s": 64.878,
    "l": 40.196
  },
  "oklch": {
    "l": 0.46923,
    "c": 0.1428,
    "h": 259.6
  },
  "luminance": 0.10056
}

Semantic roles & 50–950 ramp

primary

#2457A9

secondary

#C5A064

accent

#A740E8

background

#F7F8FC

surface

#EEEFF8

border

#C9CAD1

text

#090B12

muted

#7B7C81

Preview Lab

Preview with #2457A9

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

Preview Lab → · Contrast checker → · Palette generator →