#1B5489#1B5489

#1B5489 is a dark, moderate cyan. Relative luminance 0.084; OKLCH L 43.7% C 0.105 H 250.3°. Best body text is #FFFFFF at 7.85:1 contrast (WCAG AA passes).

Color values

HEX	#1B5489
RGB	rgb(27, 84, 137)
HSL	hsl(209, 67%, 32%)
HSV	hsv(209, 80%, 54%)
CMYK	cmyk(80.3%, 38.7%, 0%, 46.3%)
CIE-LAB	lab(34.76, 1.57, -34.71)
CIE-LCH	lch(34.76, 34.74, 272.58°)
OKLab	oklab(43.73% -0.0354 -0.099)
OKLCH	oklch(43.73% 0.105 250.3)
XYZ	xyz(8.1360, 8.3788, 24.8505)
Luminance	0.0838 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1B5489 #89501B

analogous

#1B8987 #1B5489 #1B1D89

triadic

#1B5489 #891B54 #54891B

tetradic

#1B5489 #871B89 #89501B #1D891B

square

#1B5489 #871B89 #89501B #1D891B

split-complementary

#1B5489 #891B1D #89871B

monochromatic

#071523 #113556 #1B5489 #2573BC #4492DA

Accessibility & contrast

On white

7.85

#1B5489 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.68

#1B5489 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1B5489

7.85:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1B5489	#FFFFFF	#000000	##FFFFFF
##1B5489	1.00	7.85	2.68	7.85
#FFFFFF	7.85	1.00	21.00	1.00
#000000	2.68	21.00	1.00	21.00
##FFFFFF	7.85	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#3B578B

Deuteranopia (green-blind)

#2A4D88

Tritanopia (blue-blind)

#006168

Achromatopsia (no color)

#525252

Design tokens & code

CSS

--color: #1b5489;
/* rgb */ color: rgb(27, 84, 137);
/* oklch */ color: oklch(43.7% 0.105 250.3);

Tailwind

colors: {
  custom: {
    50: '#6983ac',
    500: '#1b5489',
    950: '#000000',
  },
}

SCSS

$custom: #1b5489;
$custom-light: #6983ac;
$custom-dark: #000000;

JSON

{
  "hex": "#1b5489",
  "rgb": {
    "r": 27,
    "g": 84,
    "b": 137
  },
  "hsl": {
    "h": 208.909,
    "s": 67.073,
    "l": 32.157
  },
  "oklch": {
    "l": 0.43732,
    "c": 0.1051,
    "h": 250.3
  },
  "luminance": 0.0838
}

Semantic roles & 50–950 ramp

primary

#1B5489

secondary

#BC7E44

accent

#913EEA

background

#F6F8FA

surface

#ECEFF4

border

#C7CACE

text

#070A10

muted

#7A7C7F

Preview Lab

Preview with #1B5489

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

Preview Lab → · Contrast checker → · Palette generator →