#1D438C#1D438C

#1D438C is a dark, vivid blue. Relative luminance 0.062; OKLCH L 40.0% C 0.129 H 261.8°. Best body text is #FFFFFF at 9.40:1 contrast (WCAG AA passes).

Color values

HEX	#1D438C
RGB	rgb(29, 67, 140)
HSL	hsl(219, 66%, 33%)
HSV	hsv(219, 79%, 55%)
CMYK	cmyk(79.3%, 52.1%, 0%, 45.1%)
CIE-LAB	lab(29.83, 14.45, -44.44)
CIE-LCH	lch(29.83, 46.73, 288.02°)
OKLab	oklab(40% -0.0184 -0.1279)
OKLCH	oklch(40% 0.129 261.8)
XYZ	xyz(7.2458, 6.1681, 25.6145)
Luminance	0.0617 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1D438C #8C661D

analogous

#1D7A8C #1D438C #2E1D8C

triadic

#1D438C #8C1D43 #438C1D

tetradic

#1D438C #8C1D7A #8C661D #1D8C2E

square

#1D438C #8C1D7A #8C661D #1D8C2E

split-complementary

#1D438C #8C2E1D #7A8C1D

monochromatic

#081227 #122B59 #1D438C #285BBF #4A7BD9

Accessibility & contrast

On white

9.40

#1D438C on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.23

#1D438C on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1D438C

9.40:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1D438C	#FFFFFF	#000000	##FFFFFF
##1D438C	1.00	9.40	2.23	9.40
#FFFFFF	9.40	1.00	21.00	1.00
#000000	2.23	21.00	1.00	21.00
##FFFFFF	9.40	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#144C8F

Deuteranopia (green-blind)

#00418B

Tritanopia (blue-blind)

#005561

Achromatopsia (no color)

#464646

Design tokens & code

CSS

--color: #1d438c;
/* rgb */ color: rgb(29, 67, 140);
/* oklch */ color: oklch(40.0% 0.129 261.8);

Tailwind

colors: {
  custom: {
    50: '#6b76ae',
    500: '#1d438c',
    950: '#000000',
  },
}

SCSS

$custom: #1d438c;
$custom-light: #6b76ae;
$custom-dark: #000000;

JSON

{
  "hex": "#1d438c",
  "rgb": {
    "r": 29,
    "g": 67,
    "b": 140
  },
  "hsl": {
    "h": 219.459,
    "s": 65.68,
    "l": 33.137
  },
  "oklch": {
    "l": 0.39999,
    "c": 0.12922,
    "h": 261.8
  },
  "luminance": 0.06169
}

Semantic roles & 50–950 ramp

primary

#1D438C

secondary

#BC9449

accent

#AF3FE9

background

#F6F7FA

surface

#ECEDF4

border

#C7C8CE

text

#080810

muted

#7A7B7F

Preview Lab

Preview with #1D438C

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

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