#1B7589#1B7589

#1B7589 is a mid, moderate cyan. Relative luminance 0.148; OKLCH L 52.1% C 0.085 H 216.8°. Best body text is #FFFFFF at 5.31:1 contrast (WCAG AA passes).

Color values

HEX	#1B7589
RGB	rgb(27, 117, 137)
HSL	hsl(191, 67%, 32%)
HSV	hsv(191, 80%, 54%)
CMYK	cmyk(80.3%, 14.6%, 0%, 46.3%)
CIE-LAB	lab(45.30, -18.19, -18.25)
CIE-LCH	lch(45.30, 25.77, 225.09°)
OKLab	oklab(52.12% -0.0682 -0.051)
OKLCH	oklch(52.12% 0.085 216.8)
XYZ	xyz(11.3267, 14.7603, 25.9141)
Luminance	0.1476 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1B7589 #892F1B

analogous

#1B8966 #1B7589 #1B3E89

triadic

#1B7589 #891B75 #75891B

tetradic

#1B7589 #661B89 #892F1B #3E891B

square

#1B7589 #661B89 #892F1B #3E891B

split-complementary

#1B7589 #891B3E #89661B

monochromatic

#071E23 #114956 #1B7589 #25A1BC #44BFDA

Accessibility & contrast

On white

5.31

#1B7589 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.95

#1B7589 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #1B7589

5.31:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1B7589	#FFFFFF	#000000	##FFFFFF
##1B7589	1.00	5.31	3.95	5.31
#FFFFFF	5.31	1.00	21.00	1.00
#000000	3.95	21.00	1.00	21.00
##FFFFFF	5.31	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#68718A

Deuteranopia (green-blind)

#596789

Tritanopia (blue-blind)

#007C7B

Achromatopsia (no color)

#6B6B6B

Design tokens & code

CSS

--color: #1b7589;
/* rgb */ color: rgb(27, 117, 137);
/* oklch */ color: oklch(52.1% 0.085 216.8);

Tailwind

colors: {
  custom: {
    50: '#6b9dab',
    500: '#1b7589',
    950: '#000000',
  },
}

SCSS

$custom: #1b7589;
$custom-light: #6b9dab;
$custom-dark: #000000;

JSON

{
  "hex": "#1b7589",
  "rgb": {
    "r": 27,
    "g": 117,
    "b": 137
  },
  "hsl": {
    "h": 190.909,
    "s": 67.073,
    "l": 32.157
  },
  "oklch": {
    "l": 0.5212,
    "c": 0.08516,
    "h": 216.8
  },
  "luminance": 0.14762
}

Semantic roles & 50–950 ramp

primary

#1B7589

secondary

#BC5A44

accent

#5D3EEA

background

#F6F9FA

surface

#ECF2F4

border

#C7CCCE

text

#080E10

muted

#7A7E7F

Preview Lab

Preview with #1B7589

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

Preview Lab → · Contrast checker → · Palette generator →