#2357A9#2357A9

#2357A9 is a mid, vivid blue. Relative luminance 0.100; OKLCH L 46.9% C 0.143 H 259.4°. Best body text is #FFFFFF at 6.98:1 contrast (WCAG AA passes).

Color values

HEX	#2357A9
RGB	rgb(35, 87, 169)
HSL	hsl(217, 66%, 40%)
HSV	hsv(217, 79%, 66%)
CMYK	cmyk(79.3%, 48.5%, 0%, 33.7%)
CIE-LAB	lab(37.91, 13.20, -48.93)
CIE-LCH	lch(37.91, 50.68, 285.10°)
OKLab	oklab(46.89% -0.0264 -0.1406)
OKLCH	oklch(46.89% 0.143 259.4)
XYZ	xyz(11.2602, 10.0370, 38.8723)
Luminance	0.1004 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#2357A9 #A97523

analogous

#239AA9 #2357A9 #3223A9

triadic

#2357A9 #A92357 #57A923

tetradic

#2357A9 #A9239A #A97523 #23A932

square

#2357A9 #A9239A #A97523 #23A932

split-complementary

#2357A9 #A93223 #9AA923

monochromatic

#0E2344 #193D76 #2357A9 #3473D5 #6796DF

Accessibility & contrast

On white

6.98

#2357A9 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.01

#2357A9 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #2357A9

6.98:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2357A9	#FFFFFF	#000000	##FFFFFF
##2357A9	1.00	6.98	3.01	6.98
#FFFFFF	6.98	1.00	21.00	1.00
#000000	3.01	21.00	1.00	21.00
##FFFFFF	6.98	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#2860AC

Deuteranopia (green-blind)

#0054A7

Tritanopia (blue-blind)

#006B78

Achromatopsia (no color)

#595959

Design tokens & code

CSS

--color: #2357a9;
/* rgb */ color: rgb(35, 87, 169);
/* oklch */ color: oklch(46.9% 0.143 259.4);

Tailwind

colors: {
  custom: {
    50: '#7385c3',
    500: '#2357a9',
    950: '#000000',
  },
}

SCSS

$custom: #2357a9;
$custom-light: #7385c3;
$custom-dark: #000000;

JSON

{
  "hex": "#2357a9",
  "rgb": {
    "r": 35,
    "g": 87,
    "b": 169
  },
  "hsl": {
    "h": 216.716,
    "s": 65.686,
    "l": 40
  },
  "oklch": {
    "l": 0.4689,
    "c": 0.14308,
    "h": 259.4
  },
  "luminance": 0.10038
}

Semantic roles & 50–950 ramp

primary

#2357A9

secondary

#C59F63

accent

#A73FE9

background

#F7F8FC

surface

#EEEFF8

border

#C9CAD1

text

#090B12

muted

#7B7C81

Preview Lab

Preview with #2357A9

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

Preview Lab → · Contrast checker → · Palette generator →