#2357BD#2357BD

#2357BD is a mid, vivid blue. Relative luminance 0.108; OKLCH L 48.4% C 0.170 H 262.0°. Best body text is #FFFFFF at 6.63:1 contrast (WCAG AA passes).

Color values

HEX	#2357BD
RGB	rgb(35, 87, 189)
HSL	hsl(220, 69%, 44%)
HSV	hsv(220, 81%, 74%)
CMYK	cmyk(81.5%, 54%, 0%, 25.9%)
CIE-LAB	lab(39.32, 21.02, -58.43)
CIE-LCH	lch(39.32, 62.10, 289.79°)
OKLab	oklab(48.42% -0.0238 -0.1686)
OKLCH	oklch(48.42% 0.17 262)
XYZ	xyz(13.2833, 10.8462, 49.5277)
Luminance	0.1085 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#2357BD #BD8923

analogous

#23A4BD #2357BD #3C23BD

triadic

#2357BD #BD2357 #57BD23

tetradic

#2357BD #BD23A4 #BD8923 #23BD3C

square

#2357BD #BD23A4 #BD8923 #23BD3C

split-complementary

#2357BD #BD3C23 #A4BD23

monochromatic

#102756 #193F89 #2357BD #4176DC #759BE5

Accessibility & contrast

On white

6.63

#2357BD on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.17

#2357BD on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #2357BD

6.63:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2357BD	#FFFFFF	#000000	##FFFFFF
##2357BD	1.00	6.63	3.17	6.63
#FFFFFF	6.63	1.00	21.00	1.00
#000000	3.17	21.00	1.00	21.00
##FFFFFF	6.63	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0064C1

Deuteranopia (green-blind)

#0056BB

Tritanopia (blue-blind)

#007081

Achromatopsia (no color)

#5D5D5D

Design tokens & code

CSS

--color: #2357bd;
/* rgb */ color: rgb(35, 87, 189);
/* oklch */ color: oklch(48.4% 0.170 262.0);

Tailwind

colors: {
  custom: {
    50: '#7885d2',
    500: '#2357bd',
    950: '#000000',
  },
}

SCSS

$custom: #2357bd;
$custom-light: #7885d2;
$custom-dark: #000000;

JSON

{
  "hex": "#2357bd",
  "rgb": {
    "r": 35,
    "g": 87,
    "b": 189
  },
  "hsl": {
    "h": 219.74,
    "s": 68.75,
    "l": 43.922
  },
  "oklch": {
    "l": 0.48416,
    "c": 0.17024,
    "h": 262
  },
  "luminance": 0.10848
}

Semantic roles & 50–950 ramp

primary

#2357BD

secondary

#CDAD6F

accent

#B03CEC

background

#F8F8FD

surface

#EFEFFA

border

#CACAD3

text

#0A0B14

muted

#7C7C83

Preview Lab

Preview with #2357BD

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

Preview Lab → · Contrast checker → · Palette generator →