#2357B1#2357B1

#2357B1 is a mid, vivid blue. Relative luminance 0.103; OKLCH L 47.5% C 0.154 H 260.6°. Best body text is #FFFFFF at 6.84:1 contrast (WCAG AA passes).

Color values

HEX#2357B1
RGBrgb(35, 87, 177)
HSLhsl(218, 67%, 42%)
HSVhsv(218, 80%, 69%)
CMYKcmyk(80.2%, 50.8%, 0%, 30.6%)
CIE-LABlab(38.46, 16.34, -52.78)
CIE-LCHlch(38.46, 55.26, 287.20°)
OKLaboklab(47.49% -0.0252 -0.152)
OKLCHoklch(47.49% 0.154 260.6)
XYZxyz(12.0343, 10.3466, 42.9493)
Luminance0.1035 (WCAG relative)
Temperaturecool
Familyblue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary
#2357B1 #B17D23
analogous
#239EB1 #2357B1 #3623B1
triadic
#2357B1 #B12357 #57B123
tetradic
#2357B1 #B1239E #B17D23 #23B136
square
#2357B1 #B1239E #B17D23 #23B136
split-complementary
#2357B1 #B13623 #9EB123
monochromatic
#0F254B #193E7E #2357B1 #3973D8 #6C97E2

Accessibility & contrast

On white

6.84
#2357B1 on #FFFFFF
AA ✓AA large ✓AAA ✗

On black

3.07
#2357B1 on #000000
AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #2357B1
6.84:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg##2357B1#FFFFFF#000000##FFFFFF
##2357B11.006.843.076.84
#FFFFFF6.841.0021.001.00
#0000003.0721.001.0021.00
##FFFFFF6.841.0021.001.00

Color blindness preview

Protanopia (red-blind)
#1E61B4
Deuteranopia (green-blind)
#0054AF
Tritanopia (blue-blind)
#006D7B
Achromatopsia (no color)
#5B5B5B

Design tokens & code

CSS
--color: #2357b1;
/* rgb */ color: rgb(35, 87, 177);
/* oklch */ color: oklch(47.5% 0.154 260.6);
Tailwind
colors: {
  custom: {
    50: '#7585c9',
    500: '#2357b1',
    950: '#000000',
  },
}
SCSS
$custom: #2357b1;
$custom-light: #7585c9;
$custom-dark: #000000;
JSON
{
  "hex": "#2357b1",
  "rgb": {
    "r": 35,
    "g": 87,
    "b": 177
  },
  "hsl": {
    "h": 218.028,
    "s": 66.981,
    "l": 41.569
  },
  "oklch": {
    "l": 0.47485,
    "c": 0.15403,
    "h": 260.6
  },
  "luminance": 0.10348
}

Semantic roles & 50–950 ramp

primary
#2357B1
secondary
#C8A568
accent
#AB3EEA
background
#F7F8FC
surface
#EEEFF8
border
#C9CAD1
text
#0A0B13
muted
#7C7C82

Preview Lab

Preview with #2357B1

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

Preview Lab → · Contrast checker → · Palette generator →

#2357B1 Color — HEX, RGB, HSL, OKLCH & Contrast — Tintiva