#1C598B#1C598B

#1C598B is a mid, moderate cyan. Relative luminance 0.093; OKLCH L 45.1% C 0.102 H 247.6°. Best body text is #FFFFFF at 7.37:1 contrast (WCAG AA passes).

Color values

HEX	#1C598B
RGB	rgb(28, 89, 139)
HSL	hsl(207, 66%, 33%)
HSV	hsv(207, 80%, 55%)
CMYK	cmyk(79.9%, 36%, 0%, 45.5%)
CIE-LAB	lab(36.47, -0.74, -33.21)
CIE-LCH	lch(36.47, 33.22, 268.72°)
OKLab	oklab(45.12% -0.039 -0.0945)
OKLCH	oklch(45.12% 0.102 247.6)
XYZ	xyz(8.7097, 9.2547, 25.7484)
Luminance	0.0926 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1C598B #8B4E1C

analogous

#1C8B85 #1C598B #1C218B

triadic

#1C598B #8B1C59 #598B1C

tetradic

#1C598B #851C8B #8B4E1C #218B1C

square

#1C598B #851C8B #8B4E1C #218B1C

split-complementary

#1C598B #8B1C21 #8B851C

monochromatic

#071825 #123858 #1C598B #267ABE #4798DA

Accessibility & contrast

On white

7.37

#1C598B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.85

#1C598B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1C598B

7.37:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1C598B	#FFFFFF	#000000	##FFFFFF
##1C598B	1.00	7.37	2.85	7.37
#FFFFFF	7.37	1.00	21.00	1.00
#000000	2.85	21.00	1.00	21.00
##FFFFFF	7.37	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#425B8D

Deuteranopia (green-blind)

#32518A

Tritanopia (blue-blind)

#00656B

Achromatopsia (no color)

#565656

Design tokens & code

CSS

--color: #1c598b;
/* rgb */ color: rgb(28, 89, 139);
/* oklch */ color: oklch(45.1% 0.102 247.6);

Tailwind

colors: {
  custom: {
    50: '#6a87ad',
    500: '#1c598b',
    950: '#000000',
  },
}

SCSS

$custom: #1c598b;
$custom-light: #6a87ad;
$custom-dark: #000000;

JSON

{
  "hex": "#1c598b",
  "rgb": {
    "r": 28,
    "g": 89,
    "b": 139
  },
  "hsl": {
    "h": 207.027,
    "s": 66.467,
    "l": 32.745
  },
  "oklch": {
    "l": 0.45119,
    "c": 0.10223,
    "h": 247.6
  },
  "luminance": 0.09256
}

Semantic roles & 50–950 ramp

primary

#1C598B

secondary

#BC7C47

accent

#8B3EE9

background

#F6F8FA

surface

#ECEFF4

border

#C7CACE

text

#070B10

muted

#7A7C7F

Preview Lab

Preview with #1C598B

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

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