#1C319F#1C319F

#1C319F is a dark, vivid blue. Relative luminance 0.049; OKLCH L 38.1% C 0.178 H 267.7°. Best body text is #FFFFFF at 10.56:1 contrast (WCAG AA passes).

Color values

HEX	#1C319F
RGB	rgb(28, 49, 159)
HSL	hsl(230, 70%, 37%)
HSV	hsv(230, 82%, 62%)
CMYK	cmyk(82.4%, 69.2%, 0%, 37.6%)
CIE-LAB	lab(26.58, 34.05, -61.38)
CIE-LCH	lch(26.58, 70.20, 299.02°)
OKLab	oklab(38.07% -0.0073 -0.1778)
OKLCH	oklch(38.07% 0.178 267.7)
XYZ	xyz(7.8330, 4.9458, 33.3360)
Luminance	0.0495 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1C319F #9F8A1C

analogous

#1C739F #1C319F #491C9F

triadic

#1C319F #9F1C31 #319F1C

tetradic

#1C319F #9F1C73 #9F8A1C #1C9F49

square

#1C319F #9F1C73 #9F8A1C #1C9F49

split-complementary

#1C319F #9F491C #739F1C

monochromatic

#0A1137 #13216B #1C319F #2541D3 #546BE1

Accessibility & contrast

On white

10.56

#1C319F on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.99

#1C319F on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1C319F

10.56:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1C319F	#FFFFFF	#000000	##FFFFFF
##1C319F	1.00	10.56	1.99	10.56
#FFFFFF	10.56	1.00	21.00	1.00
#000000	1.99	21.00	1.00	21.00
##FFFFFF	10.56	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0045A2

Deuteranopia (green-blind)

#00399D

Tritanopia (blue-blind)

#004F64

Achromatopsia (no color)

#3F3F3F

Design tokens & code

CSS

--color: #1c319f;
/* rgb */ color: rgb(28, 49, 159);
/* oklch */ color: oklch(38.1% 0.178 267.7);

Tailwind

colors: {
  custom: {
    50: '#7169bc',
    500: '#1c319f',
    950: '#000000',
  },
}

SCSS

$custom: #1c319f;
$custom-light: #7169bc;
$custom-dark: #000000;

JSON

{
  "hex": "#1c319f",
  "rgb": {
    "r": 28,
    "g": 49,
    "b": 159
  },
  "hsl": {
    "h": 230.382,
    "s": 70.053,
    "l": 36.667
  },
  "oklch": {
    "l": 0.38067,
    "c": 0.17799,
    "h": 267.7
  },
  "luminance": 0.04947
}

Semantic roles & 50–950 ramp

primary

#1C319F

secondary

#C4B253

accent

#D03BED

background

#F7F6FB

surface

#EDEBF7

border

#C8C6D0

text

#090612

muted

#7B7A81

Preview Lab

Preview with #1C319F

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

Preview Lab → · Contrast checker → · Palette generator →