#1C1FA0#1C1FA0

#1C1FA0 is a dark, vivid blue. Relative luminance 0.038; OKLCH L 35.5% C 0.197 H 269.6°. Best body text is #FFFFFF at 11.98:1 contrast (WCAG AA passes).

Color values

HEX	#1C1FA0
RGB	rgb(28, 31, 160)
HSL	hsl(239, 70%, 37%)
HSV	hsv(239, 83%, 63%)
CMYK	cmyk(82.5%, 80.6%, 0%, 37.3%)
CIE-LAB	lab(22.88, 45.08, -68.11)
CIE-LCH	lch(22.88, 81.68, 303.50°)
OKLab	oklab(35.46% -0.0012 -0.1973)
OKLCH	oklch(35.46% 0.197 269.6)
XYZ	xyz(7.3119, 3.7641, 33.5921)
Luminance	0.0377 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1C1FA0 #A09D1C

analogous

#1C61A0 #1C1FA0 #5B1CA0

triadic

#1C1FA0 #A01C1F #1FA01C

tetradic

#1C1FA0 #A01C61 #A09D1C #1CA05B

square

#1C1FA0 #A01C61 #A09D1C #1CA05B

split-complementary

#1C1FA0 #A05B1C #61A01C

monochromatic

#0A0B38 #13156C #1C1FA0 #2529D4 #5558E1

Accessibility & contrast

On white

11.98

#1C1FA0 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.75

#1C1FA0 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1C1FA0

11.98:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1C1FA0	#FFFFFF	#000000	##FFFFFF
##1C1FA0	1.00	11.98	1.75	11.98
#FFFFFF	11.98	1.00	21.00	1.00
#000000	1.75	21.00	1.00	21.00
##FFFFFF	11.98	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003DA4

Deuteranopia (green-blind)

#00309E

Tritanopia (blue-blind)

#004760

Achromatopsia (no color)

#373737

Design tokens & code

CSS

--color: #1c1fa0;
/* rgb */ color: rgb(28, 31, 160);
/* oklch */ color: oklch(35.5% 0.197 269.6);

Tailwind

colors: {
  custom: {
    50: '#735ebd',
    500: '#1c1fa0',
    950: '#000000',
  },
}

SCSS

$custom: #1c1fa0;
$custom-light: #735ebd;
$custom-dark: #000000;

JSON

{
  "hex": "#1c1fa0",
  "rgb": {
    "r": 28,
    "g": 31,
    "b": 160
  },
  "hsl": {
    "h": 238.636,
    "s": 70.213,
    "l": 36.863
  },
  "oklch": {
    "l": 0.35455,
    "c": 0.19727,
    "h": 269.6
  },
  "luminance": 0.03765
}

Semantic roles & 50–950 ramp

primary

#1C1FA0

secondary

#C4C253

accent

#E93BED

background

#F7F5FB

surface

#EEE9F7

border

#C9C5D0

text

#0A0412

muted

#7C7981

Preview Lab

Preview with #1C1FA0

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

Preview Lab → · Contrast checker → · Palette generator →