#2378FF#2378FF

#2378FF is a mid, highly saturated blue. Relative luminance 0.210; OKLCH L 60.3% C 0.216 H 259.9°. Best body text is #000000 at 5.20:1 contrast (WCAG AA passes).

Color values

HEX	#2378FF
RGB	rgb(35, 120, 255)
HSL	hsl(217, 100%, 57%)
HSV	hsv(217, 86%, 100%)
CMYK	cmyk(86.3%, 52.9%, 0%, 0%)
CIE-LAB	lab(52.96, 25.05, -73.75)
CIE-LCH	lch(52.96, 77.89, 288.76°)
OKLab	oklab(60.28% -0.0378 -0.213)
OKLCH	oklch(60.28% 0.216 259.9)
XYZ	xyz(25.4530, 21.0070, 97.3016)
Luminance	0.2101 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#2378FF #FFAA23

analogous

#23E6FF #2378FF #3C23FF

triadic

#2378FF #FF2378 #78FF23

tetradic

#2378FF #FF23E6 #FFAA23 #23FF3C

square

#2378FF #FF23E6 #FFAA23 #23FF3C

split-complementary

#2378FF #FF3C23 #E6FF23

monochromatic

#0041A8 #0058E5 #2378FF #609EFF #9DC3FF

Accessibility & contrast

On white

4.04

#2378FF on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.20

#2378FF on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #2378FF

5.20:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2378FF	#FFFFFF	#000000	##000000
##2378FF	1.00	4.04	5.20	5.20
#FFFFFF	4.04	1.00	21.00	21.00
#000000	5.20	21.00	1.00	1.00
##000000	5.20	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#0089FF

Deuteranopia (green-blind)

#0075FC

Tritanopia (blue-blind)

#009AB0

Achromatopsia (no color)

#7E7E7E

Design tokens & code

CSS

--color: #2378ff;
/* rgb */ color: rgb(35, 120, 255);
/* oklch */ color: oklch(60.3% 0.216 259.9);

Tailwind

colors: {
  custom: {
    50: '#869eff',
    500: '#2378ff',
    950: '#000000',
  },
}

SCSS

$custom: #2378ff;
$custom-light: #869eff;
$custom-dark: #000000;

JSON

{
  "hex": "#2378ff",
  "rgb": {
    "r": 35,
    "g": 120,
    "b": 255
  },
  "hsl": {
    "h": 216.818,
    "s": 100,
    "l": 56.863
  },
  "oklch": {
    "l": 0.60282,
    "c": 0.21629,
    "h": 259.9
  },
  "luminance": 0.2101
}

Semantic roles & 50–950 ramp

primary

#2378FF

secondary

#ECC992

accent

#AC29FF

background

#F9F9FF

surface

#F2F2FF

border

#CCCCD7

text

#0E0E18

muted

#7E7E86

Preview Lab

Preview with #2378FF

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

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