#1D529F#1D529F

#1D529F is a dark, vivid blue. Relative luminance 0.088; OKLCH L 44.8% C 0.137 H 258.4°. Best body text is #FFFFFF at 7.61:1 contrast (WCAG AA passes).

Color values

HEX	#1D529F
RGB	rgb(29, 82, 159)
HSL	hsl(216, 69%, 37%)
HSV	hsv(216, 82%, 62%)
CMYK	cmyk(81.8%, 48.4%, 0%, 37.6%)
CIE-LAB	lab(35.59, 11.92, -46.70)
CIE-LCH	lch(35.59, 48.20, 284.31°)
OKLab	oklab(44.84% -0.0277 -0.1342)
OKLCH	oklch(44.84% 0.137 258.4)
XYZ	xyz(9.7797, 8.7978, 33.9769)
Luminance	0.0880 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1D529F #9F6A1D

analogous

#1D939F #1D529F #291D9F

triadic

#1D529F #9F1D52 #529F1D

tetradic

#1D529F #9F1D93 #9F6A1D #1D9F29

square

#1D529F #9F1D93 #9F6A1D #1D9F29

split-complementary

#1D529F #9F291D #939F1D

monochromatic

#0A1D37 #14376B #1D529F #266DD3 #568EE0

Accessibility & contrast

On white

7.61

#1D529F on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.76

#1D529F on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1D529F

7.61:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1D529F	#FFFFFF	#000000	##FFFFFF
##1D529F	1.00	7.61	2.76	7.61
#FFFFFF	7.61	1.00	21.00	1.00
#000000	2.76	21.00	1.00	21.00
##FFFFFF	7.61	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#265AA2

Deuteranopia (green-blind)

#004E9D

Tritanopia (blue-blind)

#006471

Achromatopsia (no color)

#545454

Design tokens & code

CSS

--color: #1d529f;
/* rgb */ color: rgb(29, 82, 159);
/* oklch */ color: oklch(44.8% 0.137 258.4);

Tailwind

colors: {
  custom: {
    50: '#6f82bc',
    500: '#1d529f',
    950: '#000000',
  },
}

SCSS

$custom: #1d529f;
$custom-light: #6f82bc;
$custom-dark: #000000;

JSON

{
  "hex": "#1d529f",
  "rgb": {
    "r": 29,
    "g": 82,
    "b": 159
  },
  "hsl": {
    "h": 215.538,
    "s": 69.149,
    "l": 36.863
  },
  "oklch": {
    "l": 0.44841,
    "c": 0.13706,
    "h": 258.4
  },
  "luminance": 0.08799
}

Semantic roles & 50–950 ramp

primary

#1D529F

secondary

#C49654

accent

#A43CEC

background

#F7F7FB

surface

#EDEEF6

border

#C8C9D0

text

#090A12

muted

#7B7C81

Preview Lab

Preview with #1D529F

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

Preview Lab → · Contrast checker → · Palette generator →