#2357BC#2357BC

#2357BC is a mid, vivid blue. Relative luminance 0.108; OKLCH L 48.3% C 0.169 H 261.9°. Best body text is #FFFFFF at 6.64:1 contrast (WCAG AA passes).

Color values

HEX	#2357BC
RGB	rgb(35, 87, 188)
HSL	hsl(220, 69%, 44%)
HSV	hsv(220, 81%, 74%)
CMYK	cmyk(81.4%, 53.7%, 0%, 26.3%)
CIE-LAB	lab(39.25, 20.64, -57.97)
CIE-LCH	lch(39.25, 61.53, 289.59°)
OKLab	oklab(48.34% -0.0239 -0.1672)
OKLCH	oklch(48.34% 0.169 261.9)
XYZ	xyz(13.1752, 10.8030, 48.9580)
Luminance	0.1080 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#2357BC #BC8823

analogous

#23A3BC #2357BC #3B23BC

triadic

#2357BC #BC2357 #57BC23

tetradic

#2357BC #BC23A3 #BC8823 #23BC3B

square

#2357BC #BC23A3 #BC8823 #23BC3B

split-complementary

#2357BC #BC3B23 #A3BC23

monochromatic

#102755 #193F88 #2357BC #4175DC #749BE5

Accessibility & contrast

On white

6.64

#2357BC on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.16

#2357BC on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #2357BC

6.64:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2357BC	#FFFFFF	#000000	##FFFFFF
##2357BC	1.00	6.64	3.16	6.64
#FFFFFF	6.64	1.00	21.00	1.00
#000000	3.16	21.00	1.00	21.00
##FFFFFF	6.64	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0064C0

Deuteranopia (green-blind)

#0056BA

Tritanopia (blue-blind)

#007081

Achromatopsia (no color)

#5C5C5C

Design tokens & code

CSS

--color: #2357bc;
/* rgb */ color: rgb(35, 87, 188);
/* oklch */ color: oklch(48.3% 0.169 261.9);

Tailwind

colors: {
  custom: {
    50: '#7885d1',
    500: '#2357bc',
    950: '#000000',
  },
}

SCSS

$custom: #2357bc;
$custom-light: #7885d1;
$custom-dark: #000000;

JSON

{
  "hex": "#2357bc",
  "rgb": {
    "r": 35,
    "g": 87,
    "b": 188
  },
  "hsl": {
    "h": 219.608,
    "s": 68.61,
    "l": 43.725
  },
  "oklch": {
    "l": 0.48337,
    "c": 0.16891,
    "h": 261.9
  },
  "luminance": 0.10805
}

Semantic roles & 50–950 ramp

primary

#2357BC

secondary

#CCAC6F

accent

#B03CEB

background

#F8F8FC

surface

#EFEFF9

border

#CACAD2

text

#0A0B14

muted

#7C7C82

Preview Lab

Preview with #2357BC

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

Preview Lab → · Contrast checker → · Palette generator →