#1B5E8E#1B5E8E

#1B5E8E is a mid, moderate cyan. Relative luminance 0.102; OKLCH L 46.5% C 0.102 H 244.7°. Best body text is #FFFFFF at 6.91:1 contrast (WCAG AA passes).

Color values

HEX	#1B5E8E
RGB	rgb(27, 94, 142)
HSL	hsl(205, 68%, 33%)
HSV	hsv(205, 81%, 56%)
CMYK	cmyk(81%, 33.8%, 0%, 44.3%)
CIE-LAB	lab(38.18, -2.85, -32.33)
CIE-LCH	lch(38.18, 32.45, 264.96°)
OKLab	oklab(46.51% -0.0434 -0.0918)
OKLCH	oklch(46.51% 0.102 244.7)
XYZ	xyz(9.3353, 10.1903, 27.0609)
Luminance	0.1019 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1B5E8E #8E4B1B

analogous

#1B8E84 #1B5E8E #1B258E

triadic

#1B5E8E #8E1B5E #5E8E1B

tetradic

#1B5E8E #841B8E #8E4B1B #258E1B

square

#1B5E8E #841B8E #8E4B1B #258E1B

split-complementary

#1B5E8E #8E1B25 #8E841B

monochromatic

#071A27 #113C5B #1B5E8E #2580C1 #479EDC

Accessibility & contrast

On white

6.91

#1B5E8E on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.04

#1B5E8E on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #1B5E8E

6.91:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1B5E8E	#FFFFFF	#000000	##FFFFFF
##1B5E8E	1.00	6.91	3.04	6.91
#FFFFFF	6.91	1.00	21.00	1.00
#000000	3.04	21.00	1.00	21.00
##FFFFFF	6.91	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#486090

Deuteranopia (green-blind)

#37558D

Tritanopia (blue-blind)

#006A6F

Achromatopsia (no color)

#5A5A5A

Design tokens & code

CSS

--color: #1b5e8e;
/* rgb */ color: rgb(27, 94, 142);
/* oklch */ color: oklch(46.5% 0.102 244.7);

Tailwind

colors: {
  custom: {
    50: '#6b8baf',
    500: '#1b5e8e',
    950: '#000000',
  },
}

SCSS

$custom: #1b5e8e;
$custom-light: #6b8baf;
$custom-dark: #000000;

JSON

{
  "hex": "#1b5e8e",
  "rgb": {
    "r": 27,
    "g": 94,
    "b": 142
  },
  "hsl": {
    "h": 205.043,
    "s": 68.047,
    "l": 33.137
  },
  "oklch": {
    "l": 0.46514,
    "c": 0.10158,
    "h": 244.7
  },
  "luminance": 0.10191
}

Semantic roles & 50–950 ramp

primary

#1B5E8E

secondary

#BE7947

accent

#863DEB

background

#F6F8FA

surface

#ECF0F4

border

#C7CBCE

text

#080C10

muted

#7A7D7F

Preview Lab

Preview with #1B5E8E

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

Preview Lab → · Contrast checker → · Palette generator →