#1B5D7F#1B5D7F

#1B5D7F is a mid, moderate cyan. Relative luminance 0.096; OKLCH L 45.4% C 0.085 H 235.9°. Best body text is #FFFFFF at 7.19:1 contrast (WCAG AA passes).

Color values

HEX	#1B5D7F
RGB	rgb(27, 93, 127)
HSL	hsl(200, 65%, 30%)
HSV	hsv(200, 79%, 50%)
CMYK	cmyk(78.7%, 26.8%, 0%, 50.2%)
CIE-LAB	lab(37.10, -7.99, -24.90)
CIE-LCH	lch(37.10, 26.15, 252.20°)
OKLab	oklab(45.41% -0.0475 -0.0702)
OKLCH	oklch(45.41% 0.085 235.9)
XYZ	xyz(8.1956, 9.5930, 21.4943)
Luminance	0.0959 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1B5D7F #7F3D1B

analogous

#1B7F6F #1B5D7F #1B2B7F

triadic

#1B5D7F #7F1B5D #5D7F1B

tetradic

#1B5D7F #6F1B7F #7F3D1B #2B7F1B

square

#1B5D7F #6F1B7F #7F3D1B #2B7F1B

split-complementary

#1B5D7F #7F1B2B #7F6F1B

monochromatic

#06131A #10384D #1B5D7F #2682B1 #3EA2D6

Accessibility & contrast

On white

7.19

#1B5D7F on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.92

#1B5D7F on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1B5D7F

7.19:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1B5D7F	#FFFFFF	#000000	##FFFFFF
##1B5D7F	1.00	7.19	2.92	7.19
#FFFFFF	7.19	1.00	21.00	1.00
#000000	2.92	21.00	1.00	21.00
##FFFFFF	7.19	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#4D5D81

Deuteranopia (green-blind)

#3F537E

Tritanopia (blue-blind)

#006669

Achromatopsia (no color)

#575757

Design tokens & code

CSS

--color: #1b5d7f;
/* rgb */ color: rgb(27, 93, 127);
/* oklch */ color: oklch(45.4% 0.085 235.9);

Tailwind

colors: {
  custom: {
    50: '#688aa4',
    500: '#1b5d7f',
    950: '#000000',
  },
}

SCSS

$custom: #1b5d7f;
$custom-light: #688aa4;
$custom-dark: #000000;

JSON

{
  "hex": "#1b5d7f",
  "rgb": {
    "r": 27,
    "g": 93,
    "b": 127
  },
  "hsl": {
    "h": 200.4,
    "s": 64.935,
    "l": 30.196
  },
  "oklch": {
    "l": 0.45408,
    "c": 0.08478,
    "h": 235.9
  },
  "luminance": 0.09594
}

Semantic roles & 50–950 ramp

primary

#1B5D7F

secondary

#B36943

accent

#7940E8

background

#F6F8FA

surface

#EBF0F4

border

#C6CBCE

text

#070B0F

muted

#7A7C7F

Preview Lab

Preview with #1B5D7F

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

Preview Lab → · Contrast checker → · Palette generator →