#1B529D#1B529D

#1B529D is a dark, vivid cyan. Relative luminance 0.087; OKLCH L 44.6% C 0.135 H 257.5°. Best body text is #FFFFFF at 7.66:1 contrast (WCAG AA passes).

Color values

HEX	#1B529D
RGB	rgb(27, 82, 157)
HSL	hsl(215, 71%, 36%)
HSV	hsv(215, 83%, 62%)
CMYK	cmyk(82.8%, 47.8%, 0%, 38.4%)
CIE-LAB	lab(35.40, 10.91, -45.81)
CIE-LCH	lch(35.40, 47.09, 283.40°)
OKLab	oklab(44.64% -0.0291 -0.1316)
OKLCH	oklch(44.64% 0.135 257.5)
XYZ	xyz(9.5528, 8.7008, 33.0677)
Luminance	0.0870 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1B529D #9D661B

analogous

#1B939D #1B529D #251B9D

triadic

#1B529D #9D1B52 #529D1B

tetradic

#1B529D #9D1B93 #9D661B #1B9D25

square

#1B529D #9D1B93 #9D661B #1B9D25

split-complementary

#1B529D #9D251B #939D1B

monochromatic

#091B35 #123769 #1B529D #246DD1 #518EE1

Accessibility & contrast

On white

7.66

#1B529D on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.74

#1B529D on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1B529D

7.66:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1B529D	#FFFFFF	#000000	##FFFFFF
##1B529D	1.00	7.66	2.74	7.66
#FFFFFF	7.66	1.00	21.00	1.00
#000000	2.74	21.00	1.00	21.00
##FFFFFF	7.66	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#2859A0

Deuteranopia (green-blind)

#004E9C

Tritanopia (blue-blind)

#006470

Achromatopsia (no color)

#535353

Design tokens & code

CSS

--color: #1b529d;
/* rgb */ color: rgb(27, 82, 157);
/* oklch */ color: oklch(44.6% 0.135 257.5);

Tailwind

colors: {
  custom: {
    50: '#6e82ba',
    500: '#1b529d',
    950: '#000000',
  },
}

SCSS

$custom: #1b529d;
$custom-light: #6e82ba;
$custom-dark: #000000;

JSON

{
  "hex": "#1b529d",
  "rgb": {
    "r": 27,
    "g": 82,
    "b": 157
  },
  "hsl": {
    "h": 214.615,
    "s": 70.652,
    "l": 36.078
  },
  "oklch": {
    "l": 0.44635,
    "c": 0.13483,
    "h": 257.5
  },
  "luminance": 0.08702
}

Semantic roles & 50–950 ramp

primary

#1B529D

secondary

#C49350

accent

#A23AED

background

#F7F7FB

surface

#EDEEF6

border

#C8C9D0

text

#080A12

muted

#7B7C81

Preview Lab

Preview with #1B529D

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

Preview Lab → · Contrast checker → · Palette generator →