#1D438F#1D438F

#1D438F is a dark, vivid blue. Relative luminance 0.063; OKLCH L 40.2% C 0.134 H 262.2°. Best body text is #FFFFFF at 9.33:1 contrast (WCAG AA passes).

Color values

HEX	#1D438F
RGB	rgb(29, 67, 143)
HSL	hsl(220, 66%, 34%)
HSV	hsv(220, 80%, 56%)
CMYK	cmyk(79.7%, 53.1%, 0%, 43.9%)
CIE-LAB	lab(30.05, 15.66, -45.93)
CIE-LCH	lch(30.05, 48.53, 288.83°)
OKLab	oklab(40.24% -0.0181 -0.1323)
OKLCH	oklch(40.24% 0.134 262.2)
XYZ	xyz(7.4700, 6.2578, 26.7955)
Luminance	0.0626 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1D438F #8F691D

analogous

#1D7C8F #1D438F #301D8F

triadic

#1D438F #8F1D43 #438F1D

tetradic

#1D438F #8F1D7C #8F691D #1D8F30

square

#1D438F #8F1D7C #8F691D #1D8F30

split-complementary

#1D438F #8F301D #7C8F1D

monochromatic

#081329 #132B5C #1D438F #275BC2 #4C7BDB

Accessibility & contrast

On white

9.33

#1D438F on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.25

#1D438F on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1D438F

9.33:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1D438F	#FFFFFF	#000000	##FFFFFF
##1D438F	1.00	9.33	2.25	9.33
#FFFFFF	9.33	1.00	21.00	1.00
#000000	2.25	21.00	1.00	21.00
##FFFFFF	9.33	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0F4C92

Deuteranopia (green-blind)

#00428D

Tritanopia (blue-blind)

#005562

Achromatopsia (no color)

#474747

Design tokens & code

CSS

--color: #1d438f;
/* rgb */ color: rgb(29, 67, 143);
/* oklch */ color: oklch(40.2% 0.134 262.2);

Tailwind

colors: {
  custom: {
    50: '#6c76b0',
    500: '#1d438f',
    950: '#000000',
  },
}

SCSS

$custom: #1d438f;
$custom-light: #6c76b0;
$custom-dark: #000000;

JSON

{
  "hex": "#1d438f",
  "rgb": {
    "r": 29,
    "g": 67,
    "b": 143
  },
  "hsl": {
    "h": 220,
    "s": 66.279,
    "l": 33.725
  },
  "oklch": {
    "l": 0.40238,
    "c": 0.1335,
    "h": 262.2
  },
  "luminance": 0.06259
}

Semantic roles & 50–950 ramp

primary

#1D438F

secondary

#BD974B

accent

#B03FE9

background

#F7F7FA

surface

#EDEDF5

border

#C8C8CF

text

#080811

muted

#7B7B80

Preview Lab

Preview with #1D438F

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

Preview Lab → · Contrast checker → · Palette generator →