#1B528A#1B528A

#1B528A is a dark, moderate cyan. Relative luminance 0.081; OKLCH L 43.3% C 0.109 H 252.2°. Best body text is #FFFFFF at 8.01:1 contrast (WCAG AA passes).

Color values

HEX	#1B528A
RGB	rgb(27, 82, 138)
HSL	hsl(210, 67%, 32%)
HSV	hsv(210, 80%, 54%)
CMYK	cmyk(80.4%, 40.6%, 0%, 45.9%)
CIE-LAB	lab(34.19, 3.27, -36.22)
CIE-LCH	lch(34.19, 36.37, 275.16°)
OKLab	oklab(43.31% -0.0332 -0.1034)
OKLCH	oklch(43.31% 0.109 252.2)
XYZ	xyz(8.0550, 8.1016, 25.1791)
Luminance	0.0810 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1B528A #8A531B

analogous

#1B8A8A #1B528A #1B1B8A

triadic

#1B528A #8A1B52 #528A1B

tetradic

#1B528A #8A1B8A #8A531B #1B8A1B

square

#1B528A #8A1B8A #8A531B #1B8A1B

split-complementary

#1B528A #8A1B1B #8A8A1B

monochromatic

#071524 #113457 #1B528A #2570BD #458FDB

Accessibility & contrast

On white

8.01

#1B528A on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.62

#1B528A on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1B528A

8.01:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1B528A	#FFFFFF	#000000	##FFFFFF
##1B528A	1.00	8.01	2.62	8.01
#FFFFFF	8.01	1.00	21.00	1.00
#000000	2.62	21.00	1.00	21.00
##FFFFFF	8.01	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#37568C

Deuteranopia (green-blind)

#254C89

Tritanopia (blue-blind)

#005F67

Achromatopsia (no color)

#505050

Design tokens & code

CSS

--color: #1b528a;
/* rgb */ color: rgb(27, 82, 138);
/* oklch */ color: oklch(43.3% 0.109 252.2);

Tailwind

colors: {
  custom: {
    50: '#6a82ac',
    500: '#1b528a',
    950: '#000000',
  },
}

SCSS

$custom: #1b528a;
$custom-light: #6a82ac;
$custom-dark: #000000;

JSON

{
  "hex": "#1b528a",
  "rgb": {
    "r": 27,
    "g": 82,
    "b": 138
  },
  "hsl": {
    "h": 210.27,
    "s": 67.273,
    "l": 32.353
  },
  "oklch": {
    "l": 0.43308,
    "c": 0.10865,
    "h": 252.2
  },
  "luminance": 0.08103
}

Semantic roles & 50–950 ramp

primary

#1B528A

secondary

#BC8145

accent

#953EEA

background

#F6F7FA

surface

#ECEEF4

border

#C7C9CE

text

#070A10

muted

#7A7C7F

Preview Lab

Preview with #1B528A

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

Preview Lab → · Contrast checker → · Palette generator →