#1F618D#1F618D

#1F618D is a mid, moderate cyan. Relative luminance 0.108; OKLCH L 47.3% C 0.096 H 242.4°. Best body text is #FFFFFF at 6.66:1 contrast (WCAG AA passes).

Color values

HEX	#1F618D
RGB	rgb(31, 97, 141)
HSL	hsl(204, 64%, 34%)
HSV	hsv(204, 78%, 55%)
CMYK	cmyk(78%, 31.2%, 0%, 44.7%)
CIE-LAB	lab(39.18, -4.61, -30.15)
CIE-LCH	lch(39.18, 30.50, 261.30°)
OKLab	oklab(47.31% -0.0446 -0.0854)
OKLCH	oklch(47.31% 0.096 242.4)
XYZ	xyz(9.6456, 10.7626, 26.7632)
Luminance	0.1076 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1F618D #8D4B1F

analogous

#1F8D82 #1F618D #1F2A8D

triadic

#1F618D #8D1F61 #618D1F

tetradic

#1F618D #821F8D #8D4B1F #2A8D1F

square

#1F618D #821F8D #8D4B1F #2A8D1F

split-complementary

#1F618D #8D1F2A #8D821F

monochromatic

#091C29 #143E5B #1F618D #2A84BF #4EA1D8

Accessibility & contrast

On white

6.66

#1F618D on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.15

#1F618D on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #1F618D

6.66:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1F618D	#FFFFFF	#000000	##FFFFFF
##1F618D	1.00	6.66	3.15	6.66
#FFFFFF	6.66	1.00	21.00	1.00
#000000	3.15	21.00	1.00	21.00
##FFFFFF	6.66	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#4D628F

Deuteranopia (green-blind)

#3D588C

Tritanopia (blue-blind)

#006C71

Achromatopsia (no color)

#5C5C5C

Design tokens & code

CSS

--color: #1f618d;
/* rgb */ color: rgb(31, 97, 141);
/* oklch */ color: oklch(47.3% 0.096 242.4);

Tailwind

colors: {
  custom: {
    50: '#6c8dae',
    500: '#1f618d',
    950: '#000000',
  },
}

SCSS

$custom: #1f618d;
$custom-light: #6c8dae;
$custom-dark: #000000;

JSON

{
  "hex": "#1f618d",
  "rgb": {
    "r": 31,
    "g": 97,
    "b": 141
  },
  "hsl": {
    "h": 204,
    "s": 63.953,
    "l": 33.725
  },
  "oklch": {
    "l": 0.47312,
    "c": 0.09634,
    "h": 242.4
  },
  "luminance": 0.10764
}

Semantic roles & 50–950 ramp

primary

#1F618D

secondary

#BB794D

accent

#8341E7

background

#F6F8FA

surface

#ECF0F4

border

#C7CBCE

text

#080C10

muted

#7A7D7F

Preview Lab

Preview with #1F618D

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

Preview Lab → · Contrast checker → · Palette generator →