#1F618C#1F618C

#1F618C is a mid, moderate cyan. Relative luminance 0.107; OKLCH L 47.3% C 0.095 H 241.8°. Best body text is #FFFFFF at 6.67:1 contrast (WCAG AA passes).

Color values

HEX	#1F618C
RGB	rgb(31, 97, 140)
HSL	hsl(204, 64%, 34%)
HSV	hsv(204, 78%, 55%)
CMYK	cmyk(77.9%, 30.7%, 0%, 45.1%)
CIE-LAB	lab(39.13, -4.99, -29.62)
CIE-LCH	lch(39.13, 30.04, 260.43°)
OKLab	oklab(47.26% -0.0449 -0.0839)
OKLCH	oklch(47.26% 0.095 241.8)
XYZ	xyz(9.5715, 10.7330, 26.3731)
Luminance	0.1073 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1F618C #8C4A1F

analogous

#1F8C80 #1F618C #1F2A8C

triadic

#1F618C #8C1F61 #618C1F

tetradic

#1F618C #801F8C #8C4A1F #2A8C1F

square

#1F618C #801F8C #8C4A1F #2A8C1F

split-complementary

#1F618C #8C1F2A #8C801F

monochromatic

#091C28 #143E5A #1F618C #2A84BE #4EA1D8

Accessibility & contrast

On white

6.67

#1F618C on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.15

#1F618C on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #1F618C

6.67:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1F618C	#FFFFFF	#000000	##FFFFFF
##1F618C	1.00	6.67	3.15	6.67
#FFFFFF	6.67	1.00	21.00	1.00
#000000	3.15	21.00	1.00	21.00
##FFFFFF	6.67	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#4D628E

Deuteranopia (green-blind)

#3E588B

Tritanopia (blue-blind)

#006C70

Achromatopsia (no color)

#5C5C5C

Design tokens & code

CSS

--color: #1f618c;
/* rgb */ color: rgb(31, 97, 140);
/* oklch */ color: oklch(47.3% 0.095 241.8);

Tailwind

colors: {
  custom: {
    50: '#6b8dae',
    500: '#1f618c',
    950: '#000000',
  },
}

SCSS

$custom: #1f618c;
$custom-light: #6b8dae;
$custom-dark: #000000;

JSON

{
  "hex": "#1f618c",
  "rgb": {
    "r": 31,
    "g": 97,
    "b": 140
  },
  "hsl": {
    "h": 203.67,
    "s": 63.743,
    "l": 33.529
  },
  "oklch": {
    "l": 0.47256,
    "c": 0.09515,
    "h": 241.8
  },
  "luminance": 0.10734
}

Semantic roles & 50–950 ramp

primary

#1F618C

secondary

#BB784C

accent

#8241E7

background

#F6F8FA

surface

#ECF0F4

border

#C7CBCE

text

#080C10

muted

#7A7D7F

Preview Lab

Preview with #1F618C

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

Preview Lab → · Contrast checker → · Palette generator →