#1F617B#1F617B

#1F617B is a mid, moderate cyan. Relative luminance 0.103; OKLCH L 46.4% C 0.077 H 228.4°. Best body text is #FFFFFF at 6.88:1 contrast (WCAG AA passes).

Color values

HEX	#1F617B
RGB	rgb(31, 97, 123)
HSL	hsl(197, 60%, 30%)
HSV	hsv(197, 75%, 48%)
CMYK	cmyk(74.8%, 21.1%, 0%, 51.8%)
CIE-LAB	lab(38.32, -11.31, -20.55)
CIE-LCH	lch(38.32, 23.46, 241.16°)
OKLab	oklab(46.35% -0.0511 -0.0576)
OKLCH	oklch(46.35% 0.077 228.4)
XYZ	xyz(8.4135, 10.2698, 20.2739)
Luminance	0.1027 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1F617B #7B391F

analogous

#1F7B67 #1F617B #1F337B

triadic

#1F617B #7B1F61 #617B1F

tetradic

#1F617B #671F7B #7B391F #337B1F

square

#1F617B #671F7B #7B391F #337B1F

split-complementary

#1F617B #7B1F33 #7B671F

monochromatic

#061419 #133A4A #1F617B #2B88AC #44A9D0

Accessibility & contrast

On white

6.88

#1F617B on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.05

#1F617B on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #1F617B

6.88:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1F617B	#FFFFFF	#000000	##FFFFFF
##1F617B	1.00	6.88	3.05	6.88
#FFFFFF	6.88	1.00	21.00	1.00
#000000	3.05	21.00	1.00	21.00
##FFFFFF	6.88	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#535F7C

Deuteranopia (green-blind)

#47567B

Tritanopia (blue-blind)

#00686A

Achromatopsia (no color)

#5A5A5A

Design tokens & code

CSS

--color: #1f617b;
/* rgb */ color: rgb(31, 97, 123);
/* oklch */ color: oklch(46.4% 0.077 228.4);

Tailwind

colors: {
  custom: {
    50: '#688ea1',
    500: '#1f617b',
    950: '#000000',
  },
}

SCSS

$custom: #1f617b;
$custom-light: #688ea1;
$custom-dark: #000000;

JSON

{
  "hex": "#1f617b",
  "rgb": {
    "r": 31,
    "g": 97,
    "b": 123
  },
  "hsl": {
    "h": 196.957,
    "s": 59.74,
    "l": 30.196
  },
  "oklch": {
    "l": 0.46351,
    "c": 0.07706,
    "h": 228.4
  },
  "luminance": 0.10271
}

Semantic roles & 50–950 ramp

primary

#1F617B

secondary

#AE6548

accent

#7245E3

background

#F6F8F9

surface

#EBF0F2

border

#C6CBCC

text

#070C0F

muted

#7A7D7E

Preview Lab

Preview with #1F617B

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

Preview Lab → · Contrast checker → · Palette generator →