#1B598E#1B598E

#1B598E is a mid, moderate cyan. Relative luminance 0.093; OKLCH L 45.3% C 0.106 H 248.7°. Best body text is #FFFFFF at 7.33:1 contrast (WCAG AA passes).

Color values

HEX	#1B598E
RGB	rgb(27, 89, 142)
HSL	hsl(208, 68%, 33%)
HSV	hsv(208, 81%, 56%)
CMYK	cmyk(81%, 37.3%, 0%, 44.3%)
CIE-LAB	lab(36.61, 0.32, -34.81)
CIE-LCH	lch(36.61, 34.81, 270.52°)
OKLab	oklab(45.28% -0.0387 -0.0992)
OKLCH	oklch(45.28% 0.106 248.7)
XYZ	xyz(8.9050, 9.3297, 26.9174)
Luminance	0.0933 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1B598E #8E501B

analogous

#1B8E89 #1B598E #1B208E

triadic

#1B598E #8E1B59 #598E1B

tetradic

#1B598E #891B8E #8E501B #208E1B

square

#1B598E #891B8E #8E501B #208E1B

split-complementary

#1B598E #8E1B20 #8E891B

monochromatic

#071927 #11395B #1B598E #2579C1 #4798DC

Accessibility & contrast

On white

7.33

#1B598E on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.87

#1B598E on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1B598E

7.33:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1B598E	#FFFFFF	#000000	##FFFFFF
##1B598E	1.00	7.33	2.87	7.33
#FFFFFF	7.33	1.00	21.00	1.00
#000000	2.87	21.00	1.00	21.00
##FFFFFF	7.33	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#405C90

Deuteranopia (green-blind)

#2F518D

Tritanopia (blue-blind)

#00666C

Achromatopsia (no color)

#565656

Design tokens & code

CSS

--color: #1b598e;
/* rgb */ color: rgb(27, 89, 142);
/* oklch */ color: oklch(45.3% 0.106 248.7);

Tailwind

colors: {
  custom: {
    50: '#6a87af',
    500: '#1b598e',
    950: '#000000',
  },
}

SCSS

$custom: #1b598e;
$custom-light: #6a87af;
$custom-dark: #000000;

JSON

{
  "hex": "#1b598e",
  "rgb": {
    "r": 27,
    "g": 89,
    "b": 142
  },
  "hsl": {
    "h": 207.652,
    "s": 68.047,
    "l": 33.137
  },
  "oklch": {
    "l": 0.45277,
    "c": 0.10646,
    "h": 248.7
  },
  "luminance": 0.09331
}

Semantic roles & 50–950 ramp

primary

#1B598E

secondary

#BE7E47

accent

#8D3DEB

background

#F6F8FA

surface

#ECEFF4

border

#C7CACE

text

#080B10

muted

#7A7C7F

Preview Lab

Preview with #1B598E

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

Preview Lab → · Contrast checker → · Palette generator →