#1D478F#1D478F

#1D478F is a dark, vivid blue. Relative luminance 0.068; OKLCH L 41.1% C 0.128 H 260.4°. Best body text is #FFFFFF at 8.94:1 contrast (WCAG AA passes).

Color values

HEX	#1D478F
RGB	rgb(29, 71, 143)
HSL	hsl(218, 66%, 34%)
HSV	hsv(218, 80%, 56%)
CMYK	cmyk(79.7%, 50.3%, 0%, 43.9%)
CIE-LAB	lab(31.23, 12.92, -44.03)
CIE-LCH	lch(31.23, 45.88, 286.35°)
OKLab	oklab(41.14% -0.0213 -0.1266)
OKLCH	oklch(41.14% 0.128 260.4)
XYZ	xyz(7.7161, 6.7500, 26.8775)
Luminance	0.0675 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1D478F #8F651D

analogous

#1D808F #1D478F #2C1D8F

triadic

#1D478F #8F1D47 #478F1D

tetradic

#1D478F #8F1D80 #8F651D #1D8F2C

square

#1D478F #8F1D80 #8F651D #1D8F2C

split-complementary

#1D478F #8F2C1D #808F1D

monochromatic

#081429 #132E5C #1D478F #2760C2 #4C80DB

Accessibility & contrast

On white

8.94

#1D478F on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.35

#1D478F on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1D478F

8.94:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1D478F	#FFFFFF	#000000	##FFFFFF
##1D478F	1.00	8.94	2.35	8.94
#FFFFFF	8.94	1.00	21.00	1.00
#000000	2.35	21.00	1.00	21.00
##FFFFFF	8.94	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#1C4F92

Deuteranopia (green-blind)

#00458E

Tritanopia (blue-blind)

#005864

Achromatopsia (no color)

#494949

Design tokens & code

CSS

--color: #1d478f;
/* rgb */ color: rgb(29, 71, 143);
/* oklch */ color: oklch(41.1% 0.128 260.4);

Tailwind

colors: {
  custom: {
    50: '#6c79b0',
    500: '#1d478f',
    950: '#000000',
  },
}

SCSS

$custom: #1d478f;
$custom-light: #6c79b0;
$custom-dark: #000000;

JSON

{
  "hex": "#1d478f",
  "rgb": {
    "r": 29,
    "g": 71,
    "b": 143
  },
  "hsl": {
    "h": 217.895,
    "s": 66.279,
    "l": 33.725
  },
  "oklch": {
    "l": 0.41137,
    "c": 0.12838,
    "h": 260.4
  },
  "luminance": 0.06751
}

Semantic roles & 50–950 ramp

primary

#1D478F

secondary

#BD934B

accent

#AA3FE9

background

#F7F7FA

surface

#EDEDF5

border

#C8C8CF

text

#080910

muted

#7B7B7F

Preview Lab

Preview with #1D478F

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

Preview Lab → · Contrast checker → · Palette generator →