#1C1071#1C1071

#1C1071 is a dark, vivid blue. Relative luminance 0.018; OKLCH L 27.9% C 0.153 H 275.6°. Best body text is #FFFFFF at 15.42:1 contrast (WCAG AA passes).

Color values

HEX	#1C1071
RGB	rgb(28, 16, 113)
HSL	hsl(247, 75%, 25%)
HSV	hsv(247, 86%, 44%)
CMYK	cmyk(75.2%, 85.8%, 0%, 55.7%)
CIE-LAB	lab(14.45, 37.33, -52.54)
CIE-LCH	lch(14.45, 64.45, 305.39°)
OKLab	oklab(27.92% 0.0148 -0.1519)
OKLCH	oklch(27.92% 0.153 275.6)
XYZ	xyz(3.6438, 1.8094, 15.7768)
Luminance	0.0181 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1C1071 #657110

analogous

#103471 #1C1071 #4D1071

triadic

#1C1071 #711C10 #10711C

tetradic

#1C1071 #711034 #657110 #10714D

square

#1C1071 #711034 #657110 #10714D

split-complementary

#1C1071 #714D10 #347110

monochromatic

#07041B #0F083B #1C1071 #2918A7 #371FDC

Accessibility & contrast

On white

15.42

#1C1071 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.36

#1C1071 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1C1071

15.42:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1C1071	#FFFFFF	#000000	##FFFFFF
##1C1071	1.00	15.42	1.36	15.42
#FFFFFF	15.42	1.00	21.00	1.00
#000000	1.36	21.00	1.00	21.00
##FFFFFF	15.42	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#002974

Deuteranopia (green-blind)

#00206F

Tritanopia (blue-blind)

#002F42

Achromatopsia (no color)

#252525

Design tokens & code

CSS

--color: #1c1071;
/* rgb */ color: rgb(28, 16, 113);
/* oklch */ color: oklch(27.9% 0.153 275.6);

Tailwind

colors: {
  custom: {
    50: '#68529b',
    500: '#1c1071',
    950: '#000000',
  },
}

SCSS

$custom: #1c1071;
$custom-light: #68529b;
$custom-dark: #000000;

JSON

{
  "hex": "#1c1071",
  "rgb": {
    "r": 28,
    "g": 16,
    "b": 113
  },
  "hsl": {
    "h": 247.423,
    "s": 75.194,
    "l": 25.294
  },
  "oklch": {
    "l": 0.2792,
    "c": 0.1526,
    "h": 275.6
  },
  "luminance": 0.0181
}

Semantic roles & 50–950 ramp

primary

#1C1071

secondary

#9AA934

accent

#F236DB

background

#F6F4F9

surface

#ECE7F2

border

#C7C3CC

text

#07020E

muted

#7A787E

Preview Lab

Preview with #1C1071

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

Preview Lab → · Contrast checker → · Palette generator →