#1C2A71#1C2A71

#1C2A71 is a dark, vivid blue. Relative luminance 0.031; OKLCH L 32.2% C 0.123 H 269.6°. Best body text is #FFFFFF at 12.97:1 contrast (WCAG AA passes).

Color values

HEX	#1C2A71
RGB	rgb(28, 42, 113)
HSL	hsl(230, 60%, 28%)
HSV	hsv(230, 75%, 44%)
CMYK	cmyk(75.2%, 62.8%, 0%, 55.7%)
CIE-LAB	lab(20.42, 21.00, -42.73)
CIE-LCH	lch(20.42, 47.61, 296.17°)
OKLab	oklab(32.21% -0.0009 -0.1233)
OKLCH	oklch(32.21% 0.123 269.6)
XYZ	xyz(4.2865, 3.0946, 15.9910)
Luminance	0.0309 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1C2A71 #71631C

analogous

#1C5471 #1C2A71 #391C71

triadic

#1C2A71 #711C2A #2A711C

tetradic

#1C2A71 #711C54 #71631C #1C7139

square

#1C2A71 #711C54 #71631C #1C7139

split-complementary

#1C2A71 #71391C #54711C

monochromatic

#060919 #101840 #1C2A71 #283CA2 #3952CE

Accessibility & contrast

On white

12.97

#1C2A71 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.62

#1C2A71 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1C2A71

12.97:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1C2A71	#FFFFFF	#000000	##FFFFFF
##1C2A71	1.00	12.97	1.62	12.97
#FFFFFF	12.97	1.00	21.00	1.00
#000000	1.62	21.00	1.00	21.00
##FFFFFF	12.97	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003573

Deuteranopia (green-blind)

#002D70

Tritanopia (blue-blind)

#003C49

Achromatopsia (no color)

#313131

Design tokens & code

CSS

--color: #1c2a71;
/* rgb */ color: rgb(28, 42, 113);
/* oklch */ color: oklch(32.2% 0.123 269.6);

Tailwind

colors: {
  custom: {
    50: '#65639a',
    500: '#1c2a71',
    950: '#000000',
  },
}

SCSS

$custom: #1c2a71;
$custom-light: #65639a;
$custom-dark: #000000;

JSON

{
  "hex": "#1c2a71",
  "rgb": {
    "r": 28,
    "g": 42,
    "b": 113
  },
  "hsl": {
    "h": 230.118,
    "s": 60.284,
    "l": 27.647
  },
  "oklch": {
    "l": 0.32209,
    "c": 0.12331,
    "h": 269.6
  },
  "luminance": 0.03095
}

Semantic roles & 50–950 ramp

primary

#1C2A71

secondary

#A69543

accent

#C944E3

background

#F6F5F9

surface

#EBEAF2

border

#C6C6CC

text

#06050E

muted

#7A797E

Preview Lab

Preview with #1C2A71

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

Preview Lab → · Contrast checker → · Palette generator →