#1C0F71#1C0F71

#1C0F71 is a dark, vivid blue. Relative luminance 0.018; OKLCH L 27.8% C 0.153 H 275.7°. Best body text is #FFFFFF at 15.48:1 contrast (WCAG AA passes).

Color values

HEX	#1C0F71
RGB	rgb(28, 15, 113)
HSL	hsl(248, 77%, 25%)
HSV	hsv(248, 87%, 44%)
CMYK	cmyk(75.2%, 86.7%, 0%, 55.7%)
CIE-LAB	lab(14.29, 37.81, -52.81)
CIE-LCH	lch(14.29, 64.95, 305.60°)
OKLab	oklab(27.81% 0.0152 -0.1526)
OKLCH	oklch(27.81% 0.153 275.7)
XYZ	xyz(3.6294, 1.7804, 15.7720)
Luminance	0.0178 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1C0F71 #64710F

analogous

#0F3371 #1C0F71 #4D0F71

triadic

#1C0F71 #711C0F #0F711C

tetradic

#1C0F71 #710F33 #64710F #0F714D

square

#1C0F71 #710F33 #64710F #0F714D

split-complementary

#1C0F71 #714D0F #33710F

monochromatic

#07041B #0F083B #1C0F71 #2916A7 #371DDD

Accessibility & contrast

On white

15.48

#1C0F71 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.36

#1C0F71 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1C0F71

15.48:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1C0F71	#FFFFFF	#000000	##FFFFFF
##1C0F71	1.00	15.48	1.36	15.48
#FFFFFF	15.48	1.00	21.00	1.00
#000000	1.36	21.00	1.00	21.00
##FFFFFF	15.48	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#002874

Deuteranopia (green-blind)

#00206F

Tritanopia (blue-blind)

#002F41

Achromatopsia (no color)

#242424

Design tokens & code

CSS

--color: #1c0f71;
/* rgb */ color: rgb(28, 15, 113);
/* oklch */ color: oklch(27.8% 0.153 275.7);

Tailwind

colors: {
  custom: {
    50: '#68519b',
    500: '#1c0f71',
    950: '#000000',
  },
}

SCSS

$custom: #1c0f71;
$custom-light: #68519b;
$custom-dark: #000000;

JSON

{
  "hex": "#1c0f71",
  "rgb": {
    "r": 28,
    "g": 15,
    "b": 113
  },
  "hsl": {
    "h": 247.959,
    "s": 76.563,
    "l": 25.098
  },
  "oklch": {
    "l": 0.27808,
    "c": 0.15341,
    "h": 275.7
  },
  "luminance": 0.01781
}

Semantic roles & 50–950 ramp

primary

#1C0F71

secondary

#99A933

accent

#F335DA

background

#F6F4F9

surface

#ECE7F2

border

#C7C3CC

text

#07020E

muted

#7A787E

Preview Lab

Preview with #1C0F71

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

Preview Lab → · Contrast checker → · Palette generator →