#1C2271#1C2271

#1C2271 is a dark, vivid blue. Relative luminance 0.026; OKLCH L 30.6% C 0.134 H 272.2°. Best body text is #FFFFFF at 13.85:1 contrast (WCAG AA passes).

Color values

HEX	#1C2271
RGB	rgb(28, 34, 113)
HSL	hsl(236, 60%, 28%)
HSV	hsv(236, 75%, 44%)
CMYK	cmyk(75.2%, 69.9%, 0%, 55.7%)
CIE-LAB	lab(18.29, 26.56, -46.21)
CIE-LCH	lch(18.29, 53.30, 299.89°)
OKLab	oklab(30.64% 0.0051 -0.1336)
OKLCH	oklch(30.64% 0.134 272.2)
XYZ	xyz(4.0305, 2.5828, 15.9057)
Luminance	0.0258 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1C2271 #716B1C

analogous

#1C4C71 #1C2271 #411C71

triadic

#1C2271 #711C22 #22711C

tetradic

#1C2271 #711C4C #716B1C #1C7141

square

#1C2271 #711C4C #716B1C #1C7141

split-complementary

#1C2271 #71411C #4C711C

monochromatic

#060719 #101340 #1C2271 #2831A2 #3944CE

Accessibility & contrast

On white

13.85

#1C2271 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.52

#1C2271 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1C2271

13.85:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1C2271	#FFFFFF	#000000	##FFFFFF
##1C2271	1.00	13.85	1.52	13.85
#FFFFFF	13.85	1.00	21.00	1.00
#000000	1.52	21.00	1.00	21.00
##FFFFFF	13.85	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003173

Deuteranopia (green-blind)

#002970

Tritanopia (blue-blind)

#003746

Achromatopsia (no color)

#2D2D2D

Design tokens & code

CSS

--color: #1c2271;
/* rgb */ color: rgb(28, 34, 113);
/* oklch */ color: oklch(30.6% 0.134 272.2);

Tailwind

colors: {
  custom: {
    50: '#665d9b',
    500: '#1c2271',
    950: '#000000',
  },
}

SCSS

$custom: #1c2271;
$custom-light: #665d9b;
$custom-dark: #000000;

JSON

{
  "hex": "#1c2271",
  "rgb": {
    "r": 28,
    "g": 34,
    "b": 113
  },
  "hsl": {
    "h": 235.765,
    "s": 60.284,
    "l": 27.647
  },
  "oklch": {
    "l": 0.30643,
    "c": 0.13369,
    "h": 272.2
  },
  "luminance": 0.02583
}

Semantic roles & 50–950 ramp

primary

#1C2271

secondary

#A69F43

accent

#D844E3

background

#F6F5F9

surface

#EBE9F2

border

#C6C5CC

text

#07040E

muted

#7A797E

Preview Lab

Preview with #1C2271

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

Preview Lab → · Contrast checker → · Palette generator →