#0103FF#0103FF

#0103FF is a mid, highly saturated blue. Relative luminance 0.073; OKLCH L 45.3% C 0.312 H 264.1°. Best body text is #FFFFFF at 8.54:1 contrast (WCAG AA passes).

Color values

HEX	#0103FF
RGB	rgb(1, 3, 255)
HSL	hsl(240, 100%, 50%)
HSV	hsv(240, 100%, 100%)
CMYK	cmyk(99.6%, 98.8%, 0%, 0%)
CIE-LAB	lab(32.46, 78.74, -107.59)
CIE-LCH	lch(32.46, 133.33, 306.20°)
OKLab	oklab(45.31% -0.0319 -0.3108)
OKLCH	oklch(45.31% 0.312 264.1)
XYZ	xyz(18.0888, 7.2891, 95.0419)
Luminance	0.0729 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#0103FF #FFFD01

analogous

#0182FF #0103FF #7E01FF

triadic

#0103FF #FF0103 #03FF01

tetradic

#0103FF #FF0182 #FFFD01 #01FF7E

square

#0103FF #FF0182 #FFFD01 #01FF7E

split-complementary

#0103FF #FF7E01 #82FF01

monochromatic

#000186 #0002C3 #0103FF #3E40FF #7B7CFF

Accessibility & contrast

On white

8.54

#0103FF on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.46

#0103FF on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #0103FF

8.54:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##0103FF	#FFFFFF	#000000	##FFFFFF
##0103FF	1.00	8.54	2.46	8.54
#FFFFFF	8.54	1.00	21.00	1.00
#000000	2.46	21.00	1.00	21.00
##FFFFFF	8.54	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0059FF

Deuteranopia (green-blind)

#003EFB

Tritanopia (blue-blind)

#006B96

Achromatopsia (no color)

#4C4C4C

Design tokens & code

CSS

--color: #0103ff;
/* rgb */ color: rgb(1, 3, 255);
/* oklch */ color: oklch(45.3% 0.312 264.1);

Tailwind

colors: {
  custom: {
    50: '#8a5eff',
    500: '#0103ff',
    950: '#000000',
  },
}

SCSS

$custom: #0103ff;
$custom-light: #8a5eff;
$custom-dark: #000000;

JSON

{
  "hex": "#0103ff",
  "rgb": {
    "r": 1,
    "g": 3,
    "b": 255
  },
  "hsl": {
    "h": 239.528,
    "s": 100,
    "l": 50.196
  },
  "oklch": {
    "l": 0.45312,
    "c": 0.31245,
    "h": 264.1
  },
  "luminance": 0.07292
}

Semantic roles & 50–950 ramp

primary

#0103FF

secondary

#E7E675

accent

#FD29FF

background

#FAF6FF

surface

#F4EBFF

border

#CEC6D7

text

#0F0518

muted

#7F7986

Preview Lab

Preview with #0103FF

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

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