#1D438D#1D438D

#1D438D is a dark, vivid blue. Relative luminance 0.062; OKLCH L 40.1% C 0.131 H 261.9°. Best body text is #FFFFFF at 9.38:1 contrast (WCAG AA passes).

Color values

HEX	#1D438D
RGB	rgb(29, 67, 141)
HSL	hsl(220, 66%, 33%)
HSV	hsv(220, 79%, 55%)
CMYK	cmyk(79.4%, 52.5%, 0%, 44.7%)
CIE-LAB	lab(29.91, 14.86, -44.94)
CIE-LCH	lch(29.91, 47.33, 288.29°)
OKLab	oklab(40.08% -0.0183 -0.1294)
OKLCH	oklch(40.08% 0.131 261.9)
XYZ	xyz(7.3198, 6.1978, 26.0046)
Luminance	0.0620 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1D438D #8D671D

analogous

#1D7B8D #1D438D #2F1D8D

triadic

#1D438D #8D1D43 #438D1D

tetradic

#1D438D #8D1D7B #8D671D #1D8D2F

square

#1D438D #8D1D7B #8D671D #1D8D2F

split-complementary

#1D438D #8D2F1D #7B8D1D

monochromatic

#081327 #132B5A #1D438D #275BC0 #4B7BDA

Accessibility & contrast

On white

9.38

#1D438D on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.24

#1D438D on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1D438D

9.38:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1D438D	#FFFFFF	#000000	##FFFFFF
##1D438D	1.00	9.38	2.24	9.38
#FFFFFF	9.38	1.00	21.00	1.00
#000000	2.24	21.00	1.00	21.00
##FFFFFF	9.38	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#134C90

Deuteranopia (green-blind)

#00428C

Tritanopia (blue-blind)

#005561

Achromatopsia (no color)

#464646

Design tokens & code

CSS

--color: #1d438d;
/* rgb */ color: rgb(29, 67, 141);
/* oklch */ color: oklch(40.1% 0.131 261.9);

Tailwind

colors: {
  custom: {
    50: '#6b76af',
    500: '#1d438d',
    950: '#000000',
  },
}

SCSS

$custom: #1d438d;
$custom-light: #6b76af;
$custom-dark: #000000;

JSON

{
  "hex": "#1d438d",
  "rgb": {
    "r": 29,
    "g": 67,
    "b": 141
  },
  "hsl": {
    "h": 219.643,
    "s": 65.882,
    "l": 33.333
  },
  "oklch": {
    "l": 0.40079,
    "c": 0.13065,
    "h": 261.9
  },
  "luminance": 0.06199
}

Semantic roles & 50–950 ramp

primary

#1D438D

secondary

#BC954A

accent

#AF3FE9

background

#F6F7FA

surface

#ECEDF4

border

#C7C8CE

text

#080810

muted

#7A7B7F

Preview Lab

Preview with #1D438D

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

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