#1C1173#1C1173

#1C1173 is a dark, vivid blue. Relative luminance 0.019; OKLCH L 28.3% C 0.154 H 275.1°. Best body text is #FFFFFF at 15.25:1 contrast (WCAG AA passes).

Color values

HEX	#1C1173
RGB	rgb(28, 17, 115)
HSL	hsl(247, 74%, 26%)
HSV	hsv(247, 85%, 45%)
CMYK	cmyk(75.7%, 85.2%, 0%, 54.9%)
CIE-LAB	lab(14.87, 37.49, -53.14)
CIE-LCH	lch(14.87, 65.03, 305.20°)
OKLab	oklab(28.28% 0.0138 -0.1536)
OKLCH	oklch(28.28% 0.154 275.1)
XYZ	xyz(3.7728, 1.8852, 16.3814)
Luminance	0.0189 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1C1173 #687311

analogous

#113773 #1C1173 #4D1173

triadic

#1C1173 #731C11 #11731C

tetradic

#1C1173 #731137 #687311 #11734D

square

#1C1173 #731137 #687311 #11734D

split-complementary

#1C1173 #734D11 #377311

monochromatic

#06041B #0F093E #1C1173 #2919A8 #3621DE

Accessibility & contrast

On white

15.25

#1C1173 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.38

#1C1173 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1C1173

15.25:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1C1173	#FFFFFF	#000000	##FFFFFF
##1C1173	1.00	15.25	1.38	15.25
#FFFFFF	15.25	1.00	21.00	1.00
#000000	1.38	21.00	1.00	21.00
##FFFFFF	15.25	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#002A76

Deuteranopia (green-blind)

#002171

Tritanopia (blue-blind)

#003043

Achromatopsia (no color)

#252525

Design tokens & code

CSS

--color: #1c1173;
/* rgb */ color: rgb(28, 17, 115);
/* oklch */ color: oklch(28.3% 0.154 275.1);

Tailwind

colors: {
  custom: {
    50: '#69529c',
    500: '#1c1173',
    950: '#000000',
  },
}

SCSS

$custom: #1c1173;
$custom-light: #69529c;
$custom-dark: #000000;

JSON

{
  "hex": "#1c1173",
  "rgb": {
    "r": 28,
    "g": 17,
    "b": 115
  },
  "hsl": {
    "h": 246.735,
    "s": 74.242,
    "l": 25.882
  },
  "oklch": {
    "l": 0.28283,
    "c": 0.15426,
    "h": 275.1
  },
  "luminance": 0.01886
}

Semantic roles & 50–950 ramp

primary

#1C1173

secondary

#9DAA36

accent

#F137DC

background

#F6F4F9

surface

#ECE7F2

border

#C7C3CC

text

#07020E

muted

#7A787E

Preview Lab

Preview with #1C1173

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

Preview Lab → · Contrast checker → · Palette generator →