#1B5D90#1B5D90

#1B5D90 is a mid, moderate cyan. Relative luminance 0.101; OKLCH L 46.4% C 0.105 H 246.5°. Best body text is #FFFFFF at 6.97:1 contrast (WCAG AA passes).

Color values

HEX	#1B5D90
RGB	rgb(27, 93, 144)
HSL	hsl(206, 68%, 34%)
HSV	hsv(206, 81%, 56%)
CMYK	cmyk(81.3%, 35.4%, 0%, 43.5%)
CIE-LAB	lab(37.98, -1.44, -33.86)
CIE-LCH	lch(37.98, 33.89, 267.56°)
OKLab	oklab(46.39% -0.0418 -0.0963)
OKLCH	oklch(46.39% 0.105 246.5)
XYZ	xyz(9.3984, 10.0742, 27.8293)
Luminance	0.1008 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1B5D90 #904E1B

analogous

#1B9088 #1B5D90 #1B2290

triadic

#1B5D90 #901B5D #5D901B

tetradic

#1B5D90 #881B90 #904E1B #22901B

square

#1B5D90 #881B90 #904E1B #22901B

split-complementary

#1B5D90 #901B22 #90881B

monochromatic

#081A29 #113C5C #1B5D90 #257EC4 #499CDD

Accessibility & contrast

On white

6.97

#1B5D90 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.01

#1B5D90 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #1B5D90

6.97:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1B5D90	#FFFFFF	#000000	##FFFFFF
##1B5D90	1.00	6.97	3.01	6.97
#FFFFFF	6.97	1.00	21.00	1.00
#000000	3.01	21.00	1.00	21.00
##FFFFFF	6.97	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#455F92

Deuteranopia (green-blind)

#34558F

Tritanopia (blue-blind)

#00696F

Achromatopsia (no color)

#595959

Design tokens & code

CSS

--color: #1b5d90;
/* rgb */ color: rgb(27, 93, 144);
/* oklch */ color: oklch(46.4% 0.105 246.5);

Tailwind

colors: {
  custom: {
    50: '#6b8ab1',
    500: '#1b5d90',
    950: '#000000',
  },
}

SCSS

$custom: #1b5d90;
$custom-light: #6b8ab1;
$custom-dark: #000000;

JSON

{
  "hex": "#1b5d90",
  "rgb": {
    "r": 27,
    "g": 93,
    "b": 144
  },
  "hsl": {
    "h": 206.154,
    "s": 68.421,
    "l": 33.529
  },
  "oklch": {
    "l": 0.46386,
    "c": 0.10503,
    "h": 246.5
  },
  "luminance": 0.10075
}

Semantic roles & 50–950 ramp

primary

#1B5D90

secondary

#BF7C48

accent

#893DEB

background

#F6F8FA

surface

#ECF0F5

border

#C7CBCF

text

#080B10

muted

#7A7C7F

Preview Lab

Preview with #1B5D90

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

Preview Lab → · Contrast checker → · Palette generator →