#1B598C#1B598C

#1B598C is a mid, moderate cyan. Relative luminance 0.093; OKLCH L 45.2% C 0.104 H 247.8°. Best body text is #FFFFFF at 7.36:1 contrast (WCAG AA passes).

Color values

HEX	#1B598C
RGB	rgb(27, 89, 140)
HSL	hsl(207, 68%, 33%)
HSV	hsv(207, 81%, 55%)
CMYK	cmyk(80.7%, 36.4%, 0%, 45.1%)
CIE-LAB	lab(36.50, -0.47, -33.78)
CIE-LCH	lch(36.50, 33.78, 269.20°)
OKLab	oklab(45.15% -0.0392 -0.0961)
OKLCH	oklch(45.15% 0.104 247.8)
XYZ	xyz(8.7562, 9.2702, 26.1337)
Luminance	0.0927 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1B598C #8C4E1B

analogous

#1B8C87 #1B598C #1B208C

triadic

#1B598C #8C1B59 #598C1B

tetradic

#1B598C #871B8C #8C4E1B #208C1B

square

#1B598C #871B8C #8C4E1B #208C1B

split-complementary

#1B598C #8C1B20 #8C871B

monochromatic

#071825 #113859 #1B598C #257ABF #4698DB

Accessibility & contrast

On white

7.36

#1B598C on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.85

#1B598C on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1B598C

7.36:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1B598C	#FFFFFF	#000000	##FFFFFF
##1B598C	1.00	7.36	2.85	7.36
#FFFFFF	7.36	1.00	21.00	1.00
#000000	2.85	21.00	1.00	21.00
##FFFFFF	7.36	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#415C8E

Deuteranopia (green-blind)

#31518B

Tritanopia (blue-blind)

#00656C

Achromatopsia (no color)

#565656

Design tokens & code

CSS

--color: #1b598c;
/* rgb */ color: rgb(27, 89, 140);
/* oklch */ color: oklch(45.2% 0.104 247.8);

Tailwind

colors: {
  custom: {
    50: '#6a87ae',
    500: '#1b598c',
    950: '#000000',
  },
}

SCSS

$custom: #1b598c;
$custom-light: #6a87ae;
$custom-dark: #000000;

JSON

{
  "hex": "#1b598c",
  "rgb": {
    "r": 27,
    "g": 89,
    "b": 140
  },
  "hsl": {
    "h": 207.08,
    "s": 67.665,
    "l": 32.745
  },
  "oklch": {
    "l": 0.45153,
    "c": 0.10385,
    "h": 247.8
  },
  "luminance": 0.09271
}

Semantic roles & 50–950 ramp

primary

#1B598C

secondary

#BD7C46

accent

#8B3DEB

background

#F6F8FA

surface

#ECEFF4

border

#C7CACE

text

#070B10

muted

#7A7C7F

Preview Lab

Preview with #1B598C

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

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