#1B5E8F#1B5E8F

#1B5E8F is a mid, moderate cyan. Relative luminance 0.102; OKLCH L 46.6% C 0.103 H 245.2°. Best body text is #FFFFFF at 6.90:1 contrast (WCAG AA passes).

Color values

HEX	#1B5E8F
RGB	rgb(27, 94, 143)
HSL	hsl(205, 68%, 33%)
HSV	hsv(205, 81%, 56%)
CMYK	cmyk(81.1%, 34.3%, 0%, 43.9%)
CIE-LAB	lab(38.24, -2.46, -32.85)
CIE-LCH	lch(38.24, 32.94, 265.72°)
OKLab	oklab(46.57% -0.0431 -0.0934)
OKLCH	oklch(46.57% 0.103 245.2)
XYZ	xyz(9.4107, 10.2204, 27.4580)
Luminance	0.1022 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1B5E8F #8F4C1B

analogous

#1B8F86 #1B5E8F #1B248F

triadic

#1B5E8F #8F1B5E #5E8F1B

tetradic

#1B5E8F #861B8F #8F4C1B #248F1B

square

#1B5E8F #861B8F #8F4C1B #248F1B

split-complementary

#1B5E8F #8F1B24 #8F861B

monochromatic

#081A28 #113C5C #1B5E8F #2580C2 #489EDC

Accessibility & contrast

On white

6.90

#1B5E8F on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.04

#1B5E8F on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #1B5E8F

6.90:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1B5E8F	#FFFFFF	#000000	##FFFFFF
##1B5E8F	1.00	6.90	3.04	6.90
#FFFFFF	6.90	1.00	21.00	1.00
#000000	3.04	21.00	1.00	21.00
##FFFFFF	6.90	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#476091

Deuteranopia (green-blind)

#37558E

Tritanopia (blue-blind)

#006A70

Achromatopsia (no color)

#5A5A5A

Design tokens & code

CSS

--color: #1b5e8f;
/* rgb */ color: rgb(27, 94, 143);
/* oklch */ color: oklch(46.6% 0.103 245.2);

Tailwind

colors: {
  custom: {
    50: '#6b8bb0',
    500: '#1b5e8f',
    950: '#000000',
  },
}

SCSS

$custom: #1b5e8f;
$custom-light: #6b8bb0;
$custom-dark: #000000;

JSON

{
  "hex": "#1b5e8f",
  "rgb": {
    "r": 27,
    "g": 94,
    "b": 143
  },
  "hsl": {
    "h": 205.345,
    "s": 68.235,
    "l": 33.333
  },
  "oklch": {
    "l": 0.46573,
    "c": 0.10282,
    "h": 245.2
  },
  "luminance": 0.10222
}

Semantic roles & 50–950 ramp

primary

#1B5E8F

secondary

#BE7A48

accent

#863DEB

background

#F6F8FA

surface

#ECF0F4

border

#C7CBCE

text

#080B10

muted

#7A7C7F

Preview Lab

Preview with #1B5E8F

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

Preview Lab → · Contrast checker → · Palette generator →