#1C2B73#1C2B73

#1C2B73 is a dark, vivid blue. Relative luminance 0.032; OKLCH L 32.6% C 0.125 H 269.2°. Best body text is #FFFFFF at 12.79:1 contrast (WCAG AA passes).

Color values

HEX	#1C2B73
RGB	rgb(28, 43, 115)
HSL	hsl(230, 61%, 28%)
HSV	hsv(230, 76%, 45%)
CMYK	cmyk(75.7%, 62.6%, 0%, 54.9%)
CIE-LAB	lab(20.87, 21.08, -43.27)
CIE-LCH	lch(20.87, 48.14, 295.98°)
OKLab	oklab(32.6% -0.0017 -0.1249)
OKLCH	oklch(32.6% 0.125 269.2)
XYZ	xyz(4.4362, 3.2120, 16.6025)
Luminance	0.0321 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1C2B73 #73641C

analogous

#1C5673 #1C2B73 #381C73

triadic

#1C2B73 #731C2B #2B731C

tetradic

#1C2B73 #731C56 #73641C #1C7338

square

#1C2B73 #731C56 #73641C #1C7338

split-complementary

#1C2B73 #73381C #56731C

monochromatic

#060919 #101942 #1C2B73 #283DA4 #3A54CF

Accessibility & contrast

On white

12.79

#1C2B73 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.64

#1C2B73 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1C2B73

12.79:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1C2B73	#FFFFFF	#000000	##FFFFFF
##1C2B73	1.00	12.79	1.64	12.79
#FFFFFF	12.79	1.00	21.00	1.00
#000000	1.64	21.00	1.00	21.00
##FFFFFF	12.79	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003675

Deuteranopia (green-blind)

#002E72

Tritanopia (blue-blind)

#003D4A

Achromatopsia (no color)

#323232

Design tokens & code

CSS

--color: #1c2b73;
/* rgb */ color: rgb(28, 43, 115);
/* oklch */ color: oklch(32.6% 0.125 269.2);

Tailwind

colors: {
  custom: {
    50: '#66649c',
    500: '#1c2b73',
    950: '#000000',
  },
}

SCSS

$custom: #1c2b73;
$custom-light: #66649c;
$custom-dark: #000000;

JSON

{
  "hex": "#1c2b73",
  "rgb": {
    "r": 28,
    "g": 43,
    "b": 115
  },
  "hsl": {
    "h": 229.655,
    "s": 60.839,
    "l": 28.039
  },
  "oklch": {
    "l": 0.32601,
    "c": 0.12491,
    "h": 269.2
  },
  "luminance": 0.03212
}

Semantic roles & 50–950 ramp

primary

#1C2B73

secondary

#A79643

accent

#C844E4

background

#F6F5F9

surface

#EBEAF2

border

#C6C6CC

text

#07050E

muted

#7A797E

Preview Lab

Preview with #1C2B73

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

Preview Lab → · Contrast checker → · Palette generator →