#2356B3#2356B3

#2356B3 is a mid, vivid blue. Relative luminance 0.103; OKLCH L 47.4% C 0.158 H 261.2°. Best body text is #FFFFFF at 6.88:1 contrast (WCAG AA passes).

Color values

HEX	#2356B3
RGB	rgb(35, 86, 179)
HSL	hsl(219, 67%, 42%)
HSV	hsv(219, 80%, 70%)
CMYK	cmyk(80.4%, 52%, 0%, 29.8%)
CIE-LAB	lab(38.32, 17.79, -54.19)
CIE-LCH	lch(38.32, 57.04, 288.17°)
OKLab	oklab(47.42% -0.0242 -0.1561)
OKLCH	oklch(47.42% 0.158 261.2)
XYZ	xyz(12.1547, 10.2661, 43.9800)
Luminance	0.1027 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#2356B3 #B38023

analogous

#239EB3 #2356B3 #3823B3

triadic

#2356B3 #B32356 #56B323

tetradic

#2356B3 #B3239E #B38023 #23B338

square

#2356B3 #B3239E #B38023 #23B338

split-complementary

#2356B3 #B33823 #9EB323

monochromatic

#0F254D #193D80 #2356B3 #3B73D9 #6E97E3

Accessibility & contrast

On white

6.88

#2356B3 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.05

#2356B3 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #2356B3

6.88:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2356B3	#FFFFFF	#000000	##FFFFFF
##2356B3	1.00	6.88	3.05	6.88
#FFFFFF	6.88	1.00	21.00	1.00
#000000	3.05	21.00	1.00	21.00
##FFFFFF	6.88	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#1661B6

Deuteranopia (green-blind)

#0054B1

Tritanopia (blue-blind)

#006D7C

Achromatopsia (no color)

#5A5A5A

Design tokens & code

CSS

--color: #2356b3;
/* rgb */ color: rgb(35, 86, 179);
/* oklch */ color: oklch(47.4% 0.158 261.2);

Tailwind

colors: {
  custom: {
    50: '#7585ca',
    500: '#2356b3',
    950: '#000000',
  },
}

SCSS

$custom: #2356b3;
$custom-light: #7585ca;
$custom-dark: #000000;

JSON

{
  "hex": "#2356b3",
  "rgb": {
    "r": 35,
    "g": 86,
    "b": 179
  },
  "hsl": {
    "h": 218.75,
    "s": 67.29,
    "l": 41.961
  },
  "oklch": {
    "l": 0.47422,
    "c": 0.15798,
    "h": 261.2
  },
  "luminance": 0.10268
}

Semantic roles & 50–950 ramp

primary

#2356B3

secondary

#C9A769

accent

#AD3EEA

background

#F7F8FC

surface

#EEEFF8

border

#C9CAD1

text

#0A0A13

muted

#7C7C82

Preview Lab

Preview with #2356B3

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

Preview Lab → · Contrast checker → · Palette generator →