#2359A8#2359A8

#2359A8 is a mid, vivid blue. Relative luminance 0.103; OKLCH L 47.3% C 0.139 H 258.3°. Best body text is #FFFFFF at 6.85:1 contrast (WCAG AA passes).

Color values

HEX	#2359A8
RGB	rgb(35, 89, 168)
HSL	hsl(216, 66%, 40%)
HSV	hsv(216, 79%, 66%)
CMYK	cmyk(79.2%, 47%, 0%, 34.1%)
CIE-LAB	lab(38.42, 11.49, -47.51)
CIE-LCH	lch(38.42, 48.88, 283.60°)
OKLab	oklab(47.27% -0.0282 -0.1364)
OKLCH	oklch(47.27% 0.139 258.3)
XYZ	xyz(11.3308, 10.3279, 38.4345)
Luminance	0.1033 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#2359A8 #A87223

analogous

#239CA8 #2359A8 #3023A8

triadic

#2359A8 #A82359 #59A823

tetradic

#2359A8 #A8239C #A87223 #23A830

square

#2359A8 #A8239C #A87223 #23A830

split-complementary

#2359A8 #A83023 #9CA823

monochromatic

#0E2343 #183E75 #2359A8 #3475D5 #6697DF

Accessibility & contrast

On white

6.85

#2359A8 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.07

#2359A8 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #2359A8

6.85:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2359A8	#FFFFFF	#000000	##FFFFFF
##2359A8	1.00	6.85	3.07	6.85
#FFFFFF	6.85	1.00	21.00	1.00
#000000	3.07	21.00	1.00	21.00
##FFFFFF	6.85	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#2E61AB

Deuteranopia (green-blind)

#0A55A6

Tritanopia (blue-blind)

#006C78

Achromatopsia (no color)

#5A5A5A

Design tokens & code

CSS

--color: #2359a8;
/* rgb */ color: rgb(35, 89, 168);
/* oklch */ color: oklch(47.3% 0.139 258.3);

Tailwind

colors: {
  custom: {
    50: '#7387c2',
    500: '#2359a8',
    950: '#000000',
  },
}

SCSS

$custom: #2359a8;
$custom-light: #7387c2;
$custom-dark: #000000;

JSON

{
  "hex": "#2359a8",
  "rgb": {
    "r": 35,
    "g": 89,
    "b": 168
  },
  "hsl": {
    "h": 215.639,
    "s": 65.517,
    "l": 39.804
  },
  "oklch": {
    "l": 0.47265,
    "c": 0.13928,
    "h": 258.3
  },
  "luminance": 0.10329
}

Semantic roles & 50–950 ramp

primary

#2359A8

secondary

#C59D62

accent

#A43FE8

background

#F7F8FC

surface

#EEEFF8

border

#C9CAD1

text

#090B12

muted

#7B7C81

Preview Lab

Preview with #2359A8

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

Preview Lab → · Contrast checker → · Palette generator →