#1F657F#1F657F

#1F657F is a mid, moderate cyan. Relative luminance 0.111; OKLCH L 47.6% C 0.079 H 227.1°. Best body text is #FFFFFF at 6.51:1 contrast (WCAG AA passes).

Color values

HEX	#1F657F
RGB	rgb(31, 101, 127)
HSL	hsl(196, 61%, 31%)
HSV	hsv(196, 76%, 50%)
CMYK	cmyk(75.6%, 20.5%, 0%, 50.2%)
CIE-LAB	lab(39.80, -12.21, -20.70)
CIE-LCH	lch(39.80, 24.03, 239.47°)
OKLab	oklab(47.59% -0.0538 -0.058)
OKLCH	oklch(47.59% 0.079 227.1)
XYZ	xyz(9.0480, 11.1299, 21.7460)
Luminance	0.1113 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1F657F #7F391F

analogous

#1F7F69 #1F657F #1F357F

triadic

#1F657F #7F1F65 #657F1F

tetradic

#1F657F #691F7F #7F391F #357F1F

square

#1F657F #691F7F #7F391F #357F1F

split-complementary

#1F657F #7F1F35 #7F691F

monochromatic

#07171D #133E4E #1F657F #2B8CB0 #46ACD2

Accessibility & contrast

On white

6.51

#1F657F on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.23

#1F657F on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #1F657F

6.51:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1F657F	#FFFFFF	#000000	##FFFFFF
##1F657F	1.00	6.51	3.23	6.51
#FFFFFF	6.51	1.00	21.00	1.00
#000000	3.23	21.00	1.00	21.00
##FFFFFF	6.51	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#576380

Deuteranopia (green-blind)

#4A5A7F

Tritanopia (blue-blind)

#006C6E

Achromatopsia (no color)

#5E5E5E

Design tokens & code

CSS

--color: #1f657f;
/* rgb */ color: rgb(31, 101, 127);
/* oklch */ color: oklch(47.6% 0.079 227.1);

Tailwind

colors: {
  custom: {
    50: '#6991a4',
    500: '#1f657f',
    950: '#000000',
  },
}

SCSS

$custom: #1f657f;
$custom-light: #6991a4;
$custom-dark: #000000;

JSON

{
  "hex": "#1f657f",
  "rgb": {
    "r": 31,
    "g": 101,
    "b": 127
  },
  "hsl": {
    "h": 196.25,
    "s": 60.759,
    "l": 30.98
  },
  "oklch": {
    "l": 0.47589,
    "c": 0.07917,
    "h": 227.1
  },
  "luminance": 0.11131
}

Semantic roles & 50–950 ramp

primary

#1F657F

secondary

#B26548

accent

#6F44E4

background

#F6F8FA

surface

#ECF0F4

border

#C7CBCE

text

#070C0F

muted

#7A7D7F

Preview Lab

Preview with #1F657F

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

Preview Lab → · Contrast checker → · Palette generator →