#1C2C73#1C2C73

#1C2C73 is a dark, vivid blue. Relative luminance 0.033; OKLCH L 32.8% C 0.124 H 268.8°. Best body text is #FFFFFF at 12.67:1 contrast (WCAG AA passes).

Color values

HEX	#1C2C73
RGB	rgb(28, 44, 115)
HSL	hsl(229, 61%, 28%)
HSV	hsv(229, 76%, 45%)
CMYK	cmyk(75.7%, 61.7%, 0%, 54.9%)
CIE-LAB	lab(21.15, 20.38, -42.82)
CIE-LCH	lch(21.15, 47.42, 295.45°)
OKLab	oklab(32.81% -0.0025 -0.1235)
OKLCH	oklch(32.81% 0.124 268.8)
XYZ	xyz(4.4730, 3.2856, 16.6148)
Luminance	0.0329 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1C2C73 #73631C

analogous

#1C5773 #1C2C73 #381C73

triadic

#1C2C73 #731C2C #2C731C

tetradic

#1C2C73 #731C57 #73631C #1C7338

square

#1C2C73 #731C57 #73631C #1C7338

split-complementary

#1C2C73 #73381C #57731C

monochromatic

#060919 #101942 #1C2C73 #283FA4 #3A56CF

Accessibility & contrast

On white

12.67

#1C2C73 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.66

#1C2C73 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1C2C73

12.67:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1C2C73	#FFFFFF	#000000	##FFFFFF
##1C2C73	1.00	12.67	1.66	12.67
#FFFFFF	12.67	1.00	21.00	1.00
#000000	1.66	21.00	1.00	21.00
##FFFFFF	12.67	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003775

Deuteranopia (green-blind)

#002F72

Tritanopia (blue-blind)

#003E4B

Achromatopsia (no color)

#333333

Design tokens & code

CSS

--color: #1c2c73;
/* rgb */ color: rgb(28, 44, 115);
/* oklch */ color: oklch(32.8% 0.124 268.8);

Tailwind

colors: {
  custom: {
    50: '#66649c',
    500: '#1c2c73',
    950: '#000000',
  },
}

SCSS

$custom: #1c2c73;
$custom-light: #66649c;
$custom-dark: #000000;

JSON

{
  "hex": "#1c2c73",
  "rgb": {
    "r": 28,
    "g": 44,
    "b": 115
  },
  "hsl": {
    "h": 228.966,
    "s": 60.839,
    "l": 28.039
  },
  "oklch": {
    "l": 0.32809,
    "c": 0.12357,
    "h": 268.8
  },
  "luminance": 0.03286
}

Semantic roles & 50–950 ramp

primary

#1C2C73

secondary

#A79543

accent

#C744E4

background

#F6F6F9

surface

#EBEBF2

border

#C6C6CC

text

#06050E

muted

#7A7A7E

Preview Lab

Preview with #1C2C73

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

Preview Lab → · Contrast checker → · Palette generator →