#2355B1#2355B1

#2355B1 is a mid, vivid blue. Relative luminance 0.100; OKLCH L 47.1% C 0.157 H 261.3°. Best body text is #FFFFFF at 6.99:1 contrast (WCAG AA passes).

Color values

HEX	#2355B1
RGB	rgb(35, 85, 177)
HSL	hsl(219, 67%, 42%)
HSV	hsv(219, 80%, 69%)
CMYK	cmyk(80.2%, 52%, 0%, 30.6%)
CIE-LAB	lab(37.89, 17.67, -53.70)
CIE-LCH	lch(37.89, 56.53, 288.21°)
OKLab	oklab(47.05% -0.0237 -0.1547)
OKLCH	oklch(47.05% 0.157 261.3)
XYZ	xyz(11.8746, 10.0272, 42.8961)
Luminance	0.1003 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#2355B1 #B17F23

analogous

#239CB1 #2355B1 #3823B1

triadic

#2355B1 #B12355 #55B123

tetradic

#2355B1 #B1239C #B17F23 #23B138

square

#2355B1 #B1239C #B17F23 #23B138

split-complementary

#2355B1 #B13823 #9CB123

monochromatic

#0F244B #193C7E #2355B1 #3971D8 #6C96E2

Accessibility & contrast

On white

6.99

#2355B1 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.01

#2355B1 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #2355B1

6.99:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2355B1	#FFFFFF	#000000	##FFFFFF
##2355B1	1.00	6.99	3.01	6.99
#FFFFFF	6.99	1.00	21.00	1.00
#000000	3.01	21.00	1.00	21.00
##FFFFFF	6.99	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#1660B4

Deuteranopia (green-blind)

#0053AF

Tritanopia (blue-blind)

#006B7B

Achromatopsia (no color)

#595959

Design tokens & code

CSS

--color: #2355b1;
/* rgb */ color: rgb(35, 85, 177);
/* oklch */ color: oklch(47.1% 0.157 261.3);

Tailwind

colors: {
  custom: {
    50: '#7584c9',
    500: '#2355b1',
    950: '#000000',
  },
}

SCSS

$custom: #2355b1;
$custom-light: #7584c9;
$custom-dark: #000000;

JSON

{
  "hex": "#2355b1",
  "rgb": {
    "r": 35,
    "g": 85,
    "b": 177
  },
  "hsl": {
    "h": 218.873,
    "s": 66.981,
    "l": 41.569
  },
  "oklch": {
    "l": 0.47053,
    "c": 0.1565,
    "h": 261.3
  },
  "luminance": 0.10029
}

Semantic roles & 50–950 ramp

primary

#2355B1

secondary

#C8A668

accent

#AD3EEA

background

#F7F8FC

surface

#EEEFF8

border

#C9CAD1

text

#0A0A13

muted

#7C7C82

Preview Lab

Preview with #2355B1

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

Preview Lab → · Contrast checker → · Palette generator →