#1C217B#1C217B

#1C217B is a dark, vivid blue. Relative luminance 0.028; OKLCH L 31.5% C 0.149 H 271.7°. Best body text is #FFFFFF at 13.52:1 contrast (WCAG AA passes).

Color values

HEX	#1C217B
RGB	rgb(28, 33, 123)
HSL	hsl(237, 63%, 30%)
HSV	hsv(237, 77%, 48%)
CMYK	cmyk(77.2%, 73.2%, 0%, 51.8%)
CIE-LAB	lab(19.07, 30.99, -51.34)
CIE-LCH	lch(19.07, 59.97, 301.11°)
OKLab	oklab(31.52% 0.0045 -0.1486)
OKLCH	oklch(31.52% 0.149 271.7)
XYZ	xyz(4.5967, 2.7642, 19.0263)
Luminance	0.0277 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1C217B #7B761C

analogous

#1C517B #1C217B #471C7B

triadic

#1C217B #7B1C21 #217B1C

tetradic

#1C217B #7B1C51 #7B761C #1C7B47

square

#1C217B #7B1C51 #7B761C #1C7B47

split-complementary

#1C217B #7B471C #517B1C

monochromatic

#060719 #111449 #1C217B #272EAD #3E46D3

Accessibility & contrast

On white

13.52

#1C217B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.55

#1C217B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1C217B

13.52:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1C217B	#FFFFFF	#000000	##FFFFFF
##1C217B	1.00	13.52	1.55	13.52
#FFFFFF	13.52	1.00	21.00	1.00
#000000	1.55	21.00	1.00	21.00
##FFFFFF	13.52	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#00337E

Deuteranopia (green-blind)

#002A79

Tritanopia (blue-blind)

#003A4B

Achromatopsia (no color)

#2E2E2E

Design tokens & code

CSS

--color: #1c217b;
/* rgb */ color: rgb(28, 33, 123);
/* oklch */ color: oklch(31.5% 0.149 271.7);

Tailwind

colors: {
  custom: {
    50: '#695da2',
    500: '#1c217b',
    950: '#000000',
  },
}

SCSS

$custom: #1c217b;
$custom-light: #695da2;
$custom-dark: #000000;

JSON

{
  "hex": "#1c217b",
  "rgb": {
    "r": 28,
    "g": 33,
    "b": 123
  },
  "hsl": {
    "h": 236.842,
    "s": 62.914,
    "l": 29.608
  },
  "oklch": {
    "l": 0.31522,
    "c": 0.14864,
    "h": 271.7
  },
  "luminance": 0.02765
}

Semantic roles & 50–950 ramp

primary

#1C217B

secondary

#AFA944

accent

#DD42E6

background

#F6F5FA

surface

#ECE9F4

border

#C7C5CE

text

#07040F

muted

#7A797F

Preview Lab

Preview with #1C217B

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

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