#1C247B#1C247B

#1C247B is a dark, vivid blue. Relative luminance 0.029; OKLCH L 32.0% C 0.145 H 271.1°. Best body text is #FFFFFF at 13.23:1 contrast (WCAG AA passes).

Color values

HEX	#1C247B
RGB	rgb(28, 36, 123)
HSL	hsl(235, 63%, 30%)
HSV	hsv(235, 77%, 48%)
CMYK	cmyk(77.2%, 70.7%, 0%, 51.8%)
CIE-LAB	lab(19.79, 29.02, -50.16)
CIE-LCH	lch(19.79, 57.95, 300.06°)
OKLab	oklab(32.04% 0.0027 -0.1451)
OKLCH	oklch(32.04% 0.145 271.1)
XYZ	xyz(4.6837, 2.9382, 19.0553)
Luminance	0.0294 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1C247B #7B731C

analogous

#1C547B #1C247B #431C7B

triadic

#1C247B #7B1C24 #247B1C

tetradic

#1C247B #7B1C54 #7B731C #1C7B43

square

#1C247B #7B1C54 #7B731C #1C7B43

split-complementary

#1C247B #7B431C #547B1C

monochromatic

#060719 #111549 #1C247B #2733AD #3E4BD3

Accessibility & contrast

On white

13.23

#1C247B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.59

#1C247B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1C247B

13.23:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1C247B	#FFFFFF	#000000	##FFFFFF
##1C247B	1.00	13.23	1.59	13.23
#FFFFFF	13.23	1.00	21.00	1.00
#000000	1.59	21.00	1.00	21.00
##FFFFFF	13.23	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#00347E

Deuteranopia (green-blind)

#002B79

Tritanopia (blue-blind)

#003C4C

Achromatopsia (no color)

#303030

Design tokens & code

CSS

--color: #1c247b;
/* rgb */ color: rgb(28, 36, 123);
/* oklch */ color: oklch(32.0% 0.145 271.1);

Tailwind

colors: {
  custom: {
    50: '#695fa2',
    500: '#1c247b',
    950: '#000000',
  },
}

SCSS

$custom: #1c247b;
$custom-light: #695fa2;
$custom-dark: #000000;

JSON

{
  "hex": "#1c247b",
  "rgb": {
    "r": 28,
    "g": 36,
    "b": 123
  },
  "hsl": {
    "h": 234.947,
    "s": 62.914,
    "l": 29.608
  },
  "oklch": {
    "l": 0.32042,
    "c": 0.14514,
    "h": 271.1
  },
  "luminance": 0.02939
}

Semantic roles & 50–950 ramp

primary

#1C247B

secondary

#AFA644

accent

#D842E6

background

#F6F5FA

surface

#ECE9F4

border

#C7C5CE

text

#07040F

muted

#7A797F

Preview Lab

Preview with #1C247B

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

Preview Lab → · Contrast checker → · Palette generator →