#1C439B#1C439B

#1C439B is a dark, vivid blue. Relative luminance 0.066; OKLCH L 41.2% C 0.151 H 263.3°. Best body text is #FFFFFF at 9.03:1 contrast (WCAG AA passes).

Color values

HEX	#1C439B
RGB	rgb(28, 67, 155)
HSL	hsl(222, 69%, 36%)
HSV	hsv(222, 82%, 61%)
CMYK	cmyk(81.9%, 56.8%, 0%, 39.2%)
CIE-LAB	lab(30.94, 20.38, -51.82)
CIE-LCH	lch(30.94, 55.68, 291.47°)
OKLab	oklab(41.19% -0.0176 -0.1496)
OKLCH	oklch(41.19% 0.151 263.3)
XYZ	xyz(8.4003, 6.6267, 31.8403)
Luminance	0.0663 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1C439B #9B741C

analogous

#1C829B #1C439B #341C9B

triadic

#1C439B #9B1C43 #439B1C

tetradic

#1C439B #9B1C82 #9B741C #1C9B34

square

#1C439B #9B1C82 #9B741C #1C9B34

split-complementary

#1C439B #9B341C #829B1C

monochromatic

#091633 #132D67 #1C439B #2559CF #527DE0

Accessibility & contrast

On white

9.03

#1C439B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.33

#1C439B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1C439B

9.03:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1C439B	#FFFFFF	#000000	##FFFFFF
##1C439B	1.00	9.03	2.33	9.03
#FFFFFF	9.03	1.00	21.00	1.00
#000000	2.33	21.00	1.00	21.00
##FFFFFF	9.03	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004F9E

Deuteranopia (green-blind)

#004399

Tritanopia (blue-blind)

#005968

Achromatopsia (no color)

#494949

Design tokens & code

CSS

--color: #1c439b;
/* rgb */ color: rgb(28, 67, 155);
/* oklch */ color: oklch(41.2% 0.151 263.3);

Tailwind

colors: {
  custom: {
    50: '#6f76b9',
    500: '#1c439b',
    950: '#000000',
  },
}

SCSS

$custom: #1c439b;
$custom-light: #6f76b9;
$custom-dark: #000000;

JSON

{
  "hex": "#1c439b",
  "rgb": {
    "r": 28,
    "g": 67,
    "b": 155
  },
  "hsl": {
    "h": 221.575,
    "s": 69.399,
    "l": 35.882
  },
  "oklch": {
    "l": 0.41193,
    "c": 0.15063,
    "h": 263.3
  },
  "luminance": 0.06628
}

Semantic roles & 50–950 ramp

primary

#1C439B

secondary

#C39F50

accent

#B63CEC

background

#F7F7FB

surface

#EDEDF6

border

#C8C8D0

text

#090812

muted

#7B7B81

Preview Lab

Preview with #1C439B

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

Preview Lab → · Contrast checker → · Palette generator →