#2357B0#2357B0

#2357B0 is a mid, vivid blue. Relative luminance 0.103; OKLCH L 47.4% C 0.153 H 260.4°. Best body text is #FFFFFF at 6.86:1 contrast (WCAG AA passes).

Color values

HEX	#2357B0
RGB	rgb(35, 87, 176)
HSL	hsl(218, 67%, 41%)
HSV	hsv(218, 80%, 69%)
CMYK	cmyk(80.1%, 50.6%, 0%, 31%)
CIE-LAB	lab(38.39, 15.95, -52.31)
CIE-LCH	lch(38.39, 54.68, 286.96°)
OKLab	oklab(47.41% -0.0253 -0.1505)
OKLCH	oklch(47.41% 0.153 260.4)
XYZ	xyz(11.9350, 10.3069, 42.4263)
Luminance	0.1031 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#2357B0 #B07C23

analogous

#239EB0 #2357B0 #3523B0

triadic

#2357B0 #B02357 #57B023

tetradic

#2357B0 #B0239E #B07C23 #23B035

square

#2357B0 #B0239E #B07C23 #23B035

split-complementary

#2357B0 #B03523 #9EB023

monochromatic

#0F254A #193E7D #2357B0 #3973D8 #6C97E2

Accessibility & contrast

On white

6.86

#2357B0 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.06

#2357B0 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #2357B0

6.86:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2357B0	#FFFFFF	#000000	##FFFFFF
##2357B0	1.00	6.86	3.06	6.86
#FFFFFF	6.86	1.00	21.00	1.00
#000000	3.06	21.00	1.00	21.00
##FFFFFF	6.86	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#1F61B3

Deuteranopia (green-blind)

#0054AE

Tritanopia (blue-blind)

#006D7B

Achromatopsia (no color)

#5A5A5A

Design tokens & code

CSS

--color: #2357b0;
/* rgb */ color: rgb(35, 87, 176);
/* oklch */ color: oklch(47.4% 0.153 260.4);

Tailwind

colors: {
  custom: {
    50: '#7585c8',
    500: '#2357b0',
    950: '#000000',
  },
}

SCSS

$custom: #2357b0;
$custom-light: #7585c8;
$custom-dark: #000000;

JSON

{
  "hex": "#2357b0",
  "rgb": {
    "r": 35,
    "g": 87,
    "b": 176
  },
  "hsl": {
    "h": 217.872,
    "s": 66.825,
    "l": 41.373
  },
  "oklch": {
    "l": 0.4741,
    "c": 0.15267,
    "h": 260.4
  },
  "luminance": 0.10308
}

Semantic roles & 50–950 ramp

primary

#2357B0

secondary

#C8A467

accent

#AA3EEA

background

#F7F8FC

surface

#EEEFF8

border

#C9CAD1

text

#0A0B13

muted

#7C7C82

Preview Lab

Preview with #2357B0

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

Preview Lab → · Contrast checker → · Palette generator →