#2359BC#2359BC

#2359BC is a mid, vivid blue. Relative luminance 0.111; OKLCH L 48.8% C 0.166 H 261.3°. Best body text is #FFFFFF at 6.51:1 contrast (WCAG AA passes).

Color values

HEX	#2359BC
RGB	rgb(35, 89, 188)
HSL	hsl(219, 69%, 44%)
HSV	hsv(219, 81%, 74%)
CMYK	cmyk(81.4%, 52.7%, 0%, 26.3%)
CIE-LAB	lab(39.80, 19.32, -57.07)
CIE-LCH	lch(39.80, 60.25, 288.70°)
OKLab	oklab(48.76% -0.0253 -0.1645)
OKLCH	oklch(48.76% 0.166 261.3)
XYZ	xyz(13.3393, 11.1313, 49.0127)
Luminance	0.1113 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#2359BC #BC8623

analogous

#23A5BC #2359BC #3A23BC

triadic

#2359BC #BC2359 #59BC23

tetradic

#2359BC #BC23A5 #BC8623 #23BC3A

square

#2359BC #BC23A5 #BC8623 #23BC3A

split-complementary

#2359BC #BC3A23 #A5BC23

monochromatic

#102855 #194188 #2359BC #4177DC #749CE5

Accessibility & contrast

On white

6.51

#2359BC on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.23

#2359BC on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #2359BC

6.51:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2359BC	#FFFFFF	#000000	##FFFFFF
##2359BC	1.00	6.51	3.23	6.51
#FFFFFF	6.51	1.00	21.00	1.00
#000000	3.23	21.00	1.00	21.00
##FFFFFF	6.51	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0F65C0

Deuteranopia (green-blind)

#0057BA

Tritanopia (blue-blind)

#007182

Achromatopsia (no color)

#5E5E5E

Design tokens & code

CSS

--color: #2359bc;
/* rgb */ color: rgb(35, 89, 188);
/* oklch */ color: oklch(48.8% 0.166 261.3);

Tailwind

colors: {
  custom: {
    50: '#7887d1',
    500: '#2359bc',
    950: '#000000',
  },
}

SCSS

$custom: #2359bc;
$custom-light: #7887d1;
$custom-dark: #000000;

JSON

{
  "hex": "#2359bc",
  "rgb": {
    "r": 35,
    "g": 89,
    "b": 188
  },
  "hsl": {
    "h": 218.824,
    "s": 68.61,
    "l": 43.725
  },
  "oklch": {
    "l": 0.48758,
    "c": 0.16646,
    "h": 261.3
  },
  "luminance": 0.11133
}

Semantic roles & 50–950 ramp

primary

#2359BC

secondary

#CCAB6F

accent

#AE3CEB

background

#F8F8FC

surface

#EFEFF9

border

#CACAD2

text

#0A0B14

muted

#7C7C82

Preview Lab

Preview with #2359BC

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

Preview Lab → · Contrast checker → · Palette generator →