#1C1574#1C1574

#1C1574 is a dark, vivid blue. Relative luminance 0.020; OKLCH L 28.9% C 0.152 H 274.5°. Best body text is #FFFFFF at 14.91:1 contrast (WCAG AA passes).

Color values

HEX	#1C1574
RGB	rgb(28, 21, 116)
HSL	hsl(244, 69%, 27%)
HSV	hsv(244, 82%, 45%)
CMYK	cmyk(75.9%, 81.9%, 0%, 54.5%)
CIE-LAB	lab(15.72, 35.73, -52.39)
CIE-LCH	lch(15.72, 63.42, 304.29°)
OKLab	oklab(28.9% 0.0119 -0.1515)
OKLCH	oklch(28.9% 0.152 274.5)
XYZ	xyz(3.8984, 2.0438, 16.7086)
Luminance	0.0204 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1C1574 #6D7415

analogous

#153E74 #1C1574 #4C1574

triadic

#1C1574 #741C15 #15741C

tetradic

#1C1574 #74153E #6D7415 #15744C

square

#1C1574 #74153E #6D7415 #15744C

split-complementary

#1C1574 #744C15 #3E7415

monochromatic

#06051A #0F0C40 #1C1574 #291EA8 #382BD9

Accessibility & contrast

On white

14.91

#1C1574 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.41

#1C1574 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1C1574

14.91:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1C1574	#FFFFFF	#000000	##FFFFFF
##1C1574	1.00	14.91	1.41	14.91
#FFFFFF	14.91	1.00	21.00	1.00
#000000	1.41	21.00	1.00	21.00
##FFFFFF	14.91	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#002B77

Deuteranopia (green-blind)

#002372

Tritanopia (blue-blind)

#003244

Achromatopsia (no color)

#272727

Design tokens & code

CSS

--color: #1c1574;
/* rgb */ color: rgb(28, 21, 116);
/* oklch */ color: oklch(28.9% 0.152 274.5);

Tailwind

colors: {
  custom: {
    50: '#68559d',
    500: '#1c1574',
    950: '#000000',
  },
}

SCSS

$custom: #1c1574;
$custom-light: #68559d;
$custom-dark: #000000;

JSON

{
  "hex": "#1c1574",
  "rgb": {
    "r": 28,
    "g": 21,
    "b": 116
  },
  "hsl": {
    "h": 244.421,
    "s": 69.343,
    "l": 26.863
  },
  "oklch": {
    "l": 0.28905,
    "c": 0.15201,
    "h": 274.5
  },
  "luminance": 0.02044
}

Semantic roles & 50–950 ramp

primary

#1C1574

secondary

#A2AA3B

accent

#EC3CDF

background

#F6F5F9

surface

#ECE9F2

border

#C7C5CC

text

#07030E

muted

#7A787E

Preview Lab

Preview with #1C1574

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

Preview Lab → · Contrast checker → · Palette generator →