#1C2279#1C2279

#1C2279 is a dark, vivid blue. Relative luminance 0.028; OKLCH L 31.5% C 0.145 H 271.7°. Best body text is #FFFFFF at 13.51:1 contrast (WCAG AA passes).

Color values

HEX	#1C2279
RGB	rgb(28, 34, 121)
HSL	hsl(236, 62%, 29%)
HSV	hsv(236, 77%, 47%)
CMYK	cmyk(76.9%, 71.9%, 0%, 52.5%)
CIE-LAB	lab(19.10, 29.59, -50.02)
CIE-LCH	lch(19.10, 58.12, 300.61°)
OKLab	oklab(31.48% 0.0042 -0.1447)
OKLCH	oklch(31.48% 0.145 271.7)
XYZ	xyz(4.5009, 2.7709, 18.3831)
Luminance	0.0277 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1C2279 #79731C

analogous

#1C5179 #1C2279 #451C79

triadic

#1C2279 #791C22 #22791C

tetradic

#1C2279 #791C51 #79731C #1C7945

square

#1C2279 #791C51 #79731C #1C7945

split-complementary

#1C2279 #79451C #51791C

monochromatic

#060719 #101447 #1C2279 #2830AB #3D47D2

Accessibility & contrast

On white

13.51

#1C2279 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.55

#1C2279 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1C2279

13.51:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1C2279	#FFFFFF	#000000	##FFFFFF
##1C2279	1.00	13.51	1.55	13.51
#FFFFFF	13.51	1.00	21.00	1.00
#000000	1.55	21.00	1.00	21.00
##FFFFFF	13.51	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#00337C

Deuteranopia (green-blind)

#002A77

Tritanopia (blue-blind)

#003A4A

Achromatopsia (no color)

#2E2E2E

Design tokens & code

CSS

--color: #1c2279;
/* rgb */ color: rgb(28, 34, 121);
/* oklch */ color: oklch(31.5% 0.145 271.7);

Tailwind

colors: {
  custom: {
    50: '#685da1',
    500: '#1c2279',
    950: '#000000',
  },
}

SCSS

$custom: #1c2279;
$custom-light: #685da1;
$custom-dark: #000000;

JSON

{
  "hex": "#1c2279",
  "rgb": {
    "r": 28,
    "g": 34,
    "b": 121
  },
  "hsl": {
    "h": 236.129,
    "s": 62.416,
    "l": 29.216
  },
  "oklch": {
    "l": 0.31479,
    "c": 0.14477,
    "h": 271.7
  },
  "luminance": 0.02771
}

Semantic roles & 50–950 ramp

primary

#1C2279

secondary

#ADA644

accent

#DB42E5

background

#F6F5FA

surface

#ECE9F3

border

#C7C5CD

text

#07040F

muted

#7A797F

Preview Lab

Preview with #1C2279

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

Preview Lab → · Contrast checker → · Palette generator →