#1B657F#1B657F

#1B657F is a mid, moderate cyan. Relative luminance 0.111; OKLCH L 47.5% C 0.081 H 226.4°. Best body text is #FFFFFF at 6.53:1 contrast (WCAG AA passes).

Color values

HEX	#1B657F
RGB	rgb(27, 101, 127)
HSL	hsl(196, 65%, 30%)
HSV	hsv(196, 79%, 50%)
CMYK	cmyk(78.7%, 20.5%, 0%, 50.2%)
CIE-LAB	lab(39.70, -12.74, -20.86)
CIE-LCH	lch(39.70, 24.45, 238.58°)
OKLab	oklab(47.48% -0.0558 -0.0585)
OKLCH	oklch(47.48% 0.081 226.4)
XYZ	xyz(8.9349, 11.0716, 21.7407)
Luminance	0.1107 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1B657F #7F351B

analogous

#1B7F67 #1B657F #1B337F

triadic

#1B657F #7F1B65 #657F1B

tetradic

#1B657F #671B7F #7F351B #337F1B

square

#1B657F #671B7F #7F351B #337F1B

split-complementary

#1B657F #7F1B33 #7F671B

monochromatic

#06151A #103D4D #1B657F #268DB1 #3EAFD6

Accessibility & contrast

On white

6.53

#1B657F on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.21

#1B657F on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #1B657F

6.53:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1B657F	#FFFFFF	#000000	##FFFFFF
##1B657F	1.00	6.53	3.21	6.53
#FFFFFF	6.53	1.00	21.00	1.00
#000000	3.21	21.00	1.00	21.00
##FFFFFF	6.53	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#576380

Deuteranopia (green-blind)

#4A597F

Tritanopia (blue-blind)

#006D6E

Achromatopsia (no color)

#5E5E5E

Design tokens & code

CSS

--color: #1b657f;
/* rgb */ color: rgb(27, 101, 127);
/* oklch */ color: oklch(47.5% 0.081 226.4);

Tailwind

colors: {
  custom: {
    50: '#6891a4',
    500: '#1b657f',
    950: '#000000',
  },
}

SCSS

$custom: #1b657f;
$custom-light: #6891a4;
$custom-dark: #000000;

JSON

{
  "hex": "#1b657f",
  "rgb": {
    "r": 27,
    "g": 101,
    "b": 127
  },
  "hsl": {
    "h": 195.6,
    "s": 64.935,
    "l": 30.196
  },
  "oklch": {
    "l": 0.47483,
    "c": 0.08086,
    "h": 226.4
  },
  "luminance": 0.11073
}

Semantic roles & 50–950 ramp

primary

#1B657F

secondary

#B36043

accent

#6C40E8

background

#F6F8FA

surface

#ECF0F4

border

#C7CBCE

text

#070C0F

muted

#7A7D7F

Preview Lab

Preview with #1B657F

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

Preview Lab → · Contrast checker → · Palette generator →