#1C5F9E#1C5F9E

#1C5F9E is a mid, vivid cyan. Relative luminance 0.109; OKLCH L 47.8% C 0.121 H 251.0°. Best body text is #FFFFFF at 6.60:1 contrast (WCAG AA passes).

Color values

HEX	#1C5F9E
RGB	rgb(28, 95, 158)
HSL	hsl(209, 70%, 36%)
HSV	hsv(209, 82%, 62%)
CMYK	cmyk(82.3%, 39.9%, 0%, 38%)
CIE-LAB	lab(39.41, 2.90, -39.99)
CIE-LCH	lch(39.41, 40.10, 274.14°)
OKLab	oklab(47.78% -0.0393 -0.1142)
OKLCH	oklch(47.78% 0.121 251)
XYZ	xyz(10.7403, 10.8986, 33.8787)
Luminance	0.1090 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1C5F9E #9E5B1C

analogous

#1C9E9C #1C5F9E #1C1E9E

triadic

#1C5F9E #9E1C5F #5F9E1C

tetradic

#1C5F9E #9C1C9E #9E5B1C #1E9E1C

square

#1C5F9E #9C1C9E #9E5B1C #1E9E1C

split-complementary

#1C5F9E #9E1C1E #9E9C1C

monochromatic

#0A2036 #13406A #1C5F9E #257ED2 #549CE1

Accessibility & contrast

On white

6.60

#1C5F9E on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.18

#1C5F9E on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #1C5F9E

6.60:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1C5F9E	#FFFFFF	#000000	##FFFFFF
##1C5F9E	1.00	6.60	3.18	6.60
#FFFFFF	6.60	1.00	21.00	1.00
#000000	3.18	21.00	1.00	21.00
##FFFFFF	6.60	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#4163A1

Deuteranopia (green-blind)

#2C579D

Tritanopia (blue-blind)

#006E77

Achromatopsia (no color)

#5D5D5D

Design tokens & code

CSS

--color: #1c5f9e;
/* rgb */ color: rgb(28, 95, 158);
/* oklch */ color: oklch(47.8% 0.121 251.0);

Tailwind

colors: {
  custom: {
    50: '#6e8bbb',
    500: '#1c5f9e',
    950: '#000000',
  },
}

SCSS

$custom: #1c5f9e;
$custom-light: #6e8bbb;
$custom-dark: #000000;

JSON

{
  "hex": "#1c5f9e",
  "rgb": {
    "r": 28,
    "g": 95,
    "b": 158
  },
  "hsl": {
    "h": 209.077,
    "s": 69.892,
    "l": 36.471
  },
  "oklch": {
    "l": 0.47776,
    "c": 0.12082,
    "h": 251
  },
  "luminance": 0.109
}

Semantic roles & 50–950 ramp

primary

#1C5F9E

secondary

#C48952

accent

#913BED

background

#F7F8FB

surface

#EDF0F6

border

#C8CBD0

text

#080C12

muted

#7B7D81

Preview Lab

Preview with #1C5F9E

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

Preview Lab → · Contrast checker → · Palette generator →