#1D529E#1D529E

#1D529E is a dark, vivid blue. Relative luminance 0.088; OKLCH L 44.8% C 0.136 H 258.2°. Best body text is #FFFFFF at 7.63:1 contrast (WCAG AA passes).

Color values

HEX	#1D529E
RGB	rgb(29, 82, 158)
HSL	hsl(215, 69%, 37%)
HSV	hsv(215, 82%, 62%)
CMYK	cmyk(81.6%, 48.1%, 0%, 38%)
CIE-LAB	lab(35.52, 11.52, -46.21)
CIE-LCH	lch(35.52, 47.63, 283.99°)
OKLab	oklab(44.77% -0.0278 -0.1328)
OKLCH	oklch(44.77% 0.136 258.2)
XYZ	xyz(9.6933, 8.7633, 33.5217)
Luminance	0.0876 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1D529E #9E691D

analogous

#1D939E #1D529E #291D9E

triadic

#1D529E #9E1D52 #529E1D

tetradic

#1D529E #9E1D93 #9E691D #1D9E29

square

#1D529E #9E1D93 #9E691D #1D9E29

split-complementary

#1D529E #9E291D #939E1D

monochromatic

#0A1C37 #14376A #1D529E #266DD2 #568EE0

Accessibility & contrast

On white

7.63

#1D529E on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.75

#1D529E on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1D529E

7.63:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1D529E	#FFFFFF	#000000	##FFFFFF
##1D529E	1.00	7.63	2.75	7.63
#FFFFFF	7.63	1.00	21.00	1.00
#000000	2.75	21.00	1.00	21.00
##FFFFFF	7.63	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#275AA1

Deuteranopia (green-blind)

#004E9C

Tritanopia (blue-blind)

#006470

Achromatopsia (no color)

#545454

Design tokens & code

CSS

--color: #1d529e;
/* rgb */ color: rgb(29, 82, 158);
/* oklch */ color: oklch(44.8% 0.136 258.2);

Tailwind

colors: {
  custom: {
    50: '#6f82bb',
    500: '#1d529e',
    950: '#000000',
  },
}

SCSS

$custom: #1d529e;
$custom-light: #6f82bb;
$custom-dark: #000000;

JSON

{
  "hex": "#1d529e",
  "rgb": {
    "r": 29,
    "g": 82,
    "b": 158
  },
  "hsl": {
    "h": 215.349,
    "s": 68.984,
    "l": 36.667
  },
  "oklch": {
    "l": 0.44767,
    "c": 0.13568,
    "h": 258.2
  },
  "luminance": 0.08764
}

Semantic roles & 50–950 ramp

primary

#1D529E

secondary

#C39554

accent

#A43CEC

background

#F7F7FB

surface

#EDEEF6

border

#C8C9D0

text

#090A12

muted

#7B7C81

Preview Lab

Preview with #1D529E

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

Preview Lab → · Contrast checker → · Palette generator →