#1D439B#1D439B

#1D439B is a dark, vivid blue. Relative luminance 0.066; OKLCH L 41.2% C 0.150 H 263.5°. Best body text is #FFFFFF at 9.02:1 contrast (WCAG AA passes).

Color values

HEX	#1D439B
RGB	rgb(29, 67, 155)
HSL	hsl(222, 68%, 36%)
HSV	hsv(222, 81%, 61%)
CMYK	cmyk(81.3%, 56.8%, 0%, 39.2%)
CIE-LAB	lab(30.98, 20.48, -51.76)
CIE-LCH	lch(30.98, 55.67, 291.59°)
OKLab	oklab(41.23% -0.0169 -0.1494)
OKLCH	oklch(41.23% 0.15 263.5)
XYZ	xyz(8.4281, 6.6411, 31.8416)
Luminance	0.0664 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1D439B #9B751D

analogous

#1D829B #1D439B #361D9B

triadic

#1D439B #9B1D43 #439B1D

tetradic

#1D439B #9B1D82 #9B751D #1D9B36

square

#1D439B #9B1D82 #9B751D #1D9B36

split-complementary

#1D439B #9B361D #829B1D

monochromatic

#0A1634 #132D67 #1D439B #2759CF #537EDF

Accessibility & contrast

On white

9.02

#1D439B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.33

#1D439B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1D439B

9.02:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1D439B	#FFFFFF	#000000	##FFFFFF
##1D439B	1.00	9.02	2.33	9.02
#FFFFFF	9.02	1.00	21.00	1.00
#000000	2.33	21.00	1.00	21.00
##FFFFFF	9.02	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: #1d439b;
/* rgb */ color: rgb(29, 67, 155);
/* oklch */ color: oklch(41.2% 0.150 263.5);

Tailwind

colors: {
  custom: {
    50: '#6f76b9',
    500: '#1d439b',
    950: '#000000',
  },
}

SCSS

$custom: #1d439b;
$custom-light: #6f76b9;
$custom-dark: #000000;

JSON

{
  "hex": "#1d439b",
  "rgb": {
    "r": 29,
    "g": 67,
    "b": 155
  },
  "hsl": {
    "h": 221.905,
    "s": 68.478,
    "l": 36.078
  },
  "oklch": {
    "l": 0.41228,
    "c": 0.15037,
    "h": 263.5
  },
  "luminance": 0.06642
}

Semantic roles & 50–950 ramp

primary

#1D439B

secondary

#C2A052

accent

#B73CEB

background

#F7F7FB

surface

#EDEDF6

border

#C8C8D0

text

#090812

muted

#7B7B81

Preview Lab

Preview with #1D439B

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

Preview Lab → · Contrast checker → · Palette generator →