#1C5597#1C5597

#1C5597 is a dark, vivid cyan. Relative luminance 0.090; OKLCH L 44.9% C 0.123 H 254.8°. Best body text is #FFFFFF at 7.51:1 contrast (WCAG AA passes).

Color values

HEX	#1C5597
RGB	rgb(28, 85, 151)
HSL	hsl(212, 69%, 35%)
HSV	hsv(212, 81%, 59%)
CMYK	cmyk(81.5%, 43.7%, 0%, 40.8%)
CIE-LAB	lab(35.94, 6.61, -41.33)
CIE-LCH	lch(35.94, 41.85, 279.09°)
OKLab	oklab(44.93% -0.0323 -0.1184)
OKLCH	oklch(44.93% 0.123 254.8)
XYZ	xyz(9.3112, 8.9771, 30.5142)
Luminance	0.0898 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1C5597 #975E1C

analogous

#1C9397 #1C5597 #201C97

triadic

#1C5597 #971C55 #55971C

tetradic

#1C5597 #971C93 #975E1C #1C9720

square

#1C5597 #971C93 #975E1C #1C9720

split-complementary

#1C5597 #97201C #93971C

monochromatic

#091B30 #123863 #1C5597 #2672CB #4F91DE

Accessibility & contrast

On white

7.51

#1C5597 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.80

#1C5597 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1C5597

7.51:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1C5597	#FFFFFF	#000000	##FFFFFF
##1C5597	1.00	7.51	2.80	7.51
#FFFFFF	7.51	1.00	21.00	1.00
#000000	2.80	21.00	1.00	21.00
##FFFFFF	7.51	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#345B9A

Deuteranopia (green-blind)

#1C4F96

Tritanopia (blue-blind)

#00656E

Achromatopsia (no color)

#555555

Design tokens & code

CSS

--color: #1c5597;
/* rgb */ color: rgb(28, 85, 151);
/* oklch */ color: oklch(44.9% 0.123 254.8);

Tailwind

colors: {
  custom: {
    50: '#6d84b6',
    500: '#1c5597',
    950: '#000000',
  },
}

SCSS

$custom: #1c5597;
$custom-light: #6d84b6;
$custom-dark: #000000;

JSON

{
  "hex": "#1c5597",
  "rgb": {
    "r": 28,
    "g": 85,
    "b": 151
  },
  "hsl": {
    "h": 212.195,
    "s": 68.715,
    "l": 35.098
  },
  "oklch": {
    "l": 0.44934,
    "c": 0.1227,
    "h": 254.8
  },
  "luminance": 0.08978
}

Semantic roles & 50–950 ramp

primary

#1C5597

secondary

#C18C4E

accent

#9A3CEC

background

#F7F8FB

surface

#EDEFF6

border

#C8CAD0

text

#080A11

muted

#7B7C80

Preview Lab

Preview with #1C5597

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

Preview Lab → · Contrast checker → · Palette generator →