#1C1F8E#1C1F8E

#1C1F8E is a dark, vivid blue. Relative luminance 0.032; OKLCH L 33.3% C 0.175 H 270.7°. Best body text is #FFFFFF at 12.84:1 contrast (WCAG AA passes).

Color values

HEX	#1C1F8E
RGB	rgb(28, 31, 142)
HSL	hsl(238, 67%, 33%)
HSV	hsv(238, 80%, 56%)
CMYK	cmyk(80.3%, 78.2%, 0%, 44.3%)
CIE-LAB	lab(20.75, 39.01, -60.55)
CIE-LCH	lch(20.75, 72.03, 302.80°)
OKLab	oklab(33.34% 0.0022 -0.1753)
OKLCH	oklch(33.34% 0.175 270.7)
XYZ	xyz(5.8497, 3.1792, 25.8913)
Luminance	0.0318 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1C1F8E #8E8B1C

analogous

#1C588E #1C1F8E #521C8E

triadic

#1C1F8E #8E1C1F #1F8E1C

tetradic

#1C1F8E #8E1C58 #8E8B1C #1C8E52

square

#1C1F8E #8E1C58 #8E8B1C #1C8E52

split-complementary

#1C1F8E #8E521C #588E1C

monochromatic

#080928 #12145B #1C1F8E #262AC1 #494DDB

Accessibility & contrast

On white

12.84

#1C1F8E on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.64

#1C1F8E on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1C1F8E

12.84:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1C1F8E	#FFFFFF	#000000	##FFFFFF
##1C1F8E	1.00	12.84	1.64	12.84
#FFFFFF	12.84	1.00	21.00	1.00
#000000	1.64	21.00	1.00	21.00
##FFFFFF	12.84	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003891

Deuteranopia (green-blind)

#002C8C

Tritanopia (blue-blind)

#004055

Achromatopsia (no color)

#323232

Design tokens & code

CSS

--color: #1c1f8e;
/* rgb */ color: rgb(28, 31, 142);
/* oklch */ color: oklch(33.3% 0.175 270.7);

Tailwind

colors: {
  custom: {
    50: '#6e5cb0',
    500: '#1c1f8e',
    950: '#000000',
  },
}

SCSS

$custom: #1c1f8e;
$custom-light: #6e5cb0;
$custom-dark: #000000;

JSON

{
  "hex": "#1c1f8e",
  "rgb": {
    "r": 28,
    "g": 31,
    "b": 142
  },
  "hsl": {
    "h": 238.421,
    "s": 67.059,
    "l": 33.333
  },
  "oklch": {
    "l": 0.33341,
    "c": 0.17535,
    "h": 270.7
  },
  "luminance": 0.0318
}

Semantic roles & 50–950 ramp

primary

#1C1F8E

secondary

#BDBA49

accent

#E53EEA

background

#F7F5FB

surface

#EDE9F6

border

#C8C5D0

text

#090411

muted

#7B7980

Preview Lab

Preview with #1C1F8E

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

Preview Lab → · Contrast checker → · Palette generator →