#1C2B71#1C2B71

#1C2B71 is a dark, vivid blue. Relative luminance 0.032; OKLCH L 32.4% C 0.122 H 269.2°. Best body text is #FFFFFF at 12.86:1 contrast (WCAG AA passes).

Color values

HEX	#1C2B71
RGB	rgb(28, 43, 113)
HSL	hsl(229, 60%, 28%)
HSV	hsv(229, 75%, 44%)
CMYK	cmyk(75.2%, 61.9%, 0%, 55.7%)
CIE-LAB	lab(20.70, 20.29, -42.27)
CIE-LCH	lch(20.70, 46.89, 295.64°)
OKLab	oklab(32.42% -0.0017 -0.122)
OKLCH	oklch(32.42% 0.122 269.2)
XYZ	xyz(4.3224, 3.1664, 16.0030)
Luminance	0.0317 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1C2B71 #71621C

analogous

#1C5571 #1C2B71 #381C71

triadic

#1C2B71 #711C2B #2B711C

tetradic

#1C2B71 #711C55 #71621C #1C7138

square

#1C2B71 #711C55 #71621C #1C7138

split-complementary

#1C2B71 #71381C #55711C

monochromatic

#060919 #101840 #1C2B71 #283EA2 #3954CE

Accessibility & contrast

On white

12.86

#1C2B71 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.63

#1C2B71 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1C2B71

12.86:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1C2B71	#FFFFFF	#000000	##FFFFFF
##1C2B71	1.00	12.86	1.63	12.86
#FFFFFF	12.86	1.00	21.00	1.00
#000000	1.63	21.00	1.00	21.00
##FFFFFF	12.86	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003673

Deuteranopia (green-blind)

#002E70

Tritanopia (blue-blind)

#003D49

Achromatopsia (no color)

#323232

Design tokens & code

CSS

--color: #1c2b71;
/* rgb */ color: rgb(28, 43, 113);
/* oklch */ color: oklch(32.4% 0.122 269.2);

Tailwind

colors: {
  custom: {
    50: '#65649a',
    500: '#1c2b71',
    950: '#000000',
  },
}

SCSS

$custom: #1c2b71;
$custom-light: #65649a;
$custom-dark: #000000;

JSON

{
  "hex": "#1c2b71",
  "rgb": {
    "r": 28,
    "g": 43,
    "b": 113
  },
  "hsl": {
    "h": 229.412,
    "s": 60.284,
    "l": 27.647
  },
  "oklch": {
    "l": 0.32416,
    "c": 0.12197,
    "h": 269.2
  },
  "luminance": 0.03167
}

Semantic roles & 50–950 ramp

primary

#1C2B71

secondary

#A69443

accent

#C744E3

background

#F6F5F9

surface

#EBEAF2

border

#C6C6CC

text

#06050E

muted

#7A797E

Preview Lab

Preview with #1C2B71

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

Preview Lab → · Contrast checker → · Palette generator →