#1B5E7D#1B5E7D

#1B5E7D is a mid, moderate cyan. Relative luminance 0.097; OKLCH L 45.6% C 0.082 H 233.1°. Best body text is #FFFFFF at 7.13:1 contrast (WCAG AA passes).

Color values

HEX	#1B5E7D
RGB	rgb(27, 94, 125)
HSL	hsl(199, 64%, 30%)
HSV	hsv(199, 78%, 49%)
CMYK	cmyk(78.4%, 24.8%, 0%, 51%)
CIE-LAB	lab(37.33, -9.35, -23.32)
CIE-LCH	lch(37.33, 25.12, 248.15°)
OKLab	oklab(45.56% -0.0493 -0.0656)
OKLCH	oklch(45.56% 0.082 233.1)
XYZ	xyz(8.1549, 9.7181, 20.8441)
Luminance	0.0972 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1B5E7D #7D3A1B

analogous

#1B7D6B #1B5E7D #1B2D7D

triadic

#1B5E7D #7D1B5E #5E7D1B

tetradic

#1B5E7D #6B1B7D #7D3A1B #2D7D1B

square

#1B5E7D #6B1B7D #7D3A1B #2D7D1B

split-complementary

#1B5E7D #7D1B2D #7D6B1B

monochromatic

#051319 #10384B #1B5E7D #2684AF #3DA5D5

Accessibility & contrast

On white

7.13

#1B5E7D on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.94

#1B5E7D on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1B5E7D

7.13:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1B5E7D	#FFFFFF	#000000	##FFFFFF
##1B5E7D	1.00	7.13	2.94	7.13
#FFFFFF	7.13	1.00	21.00	1.00
#000000	2.94	21.00	1.00	21.00
##FFFFFF	7.13	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#4F5D7E

Deuteranopia (green-blind)

#41547D

Tritanopia (blue-blind)

#006668

Achromatopsia (no color)

#585858

Design tokens & code

CSS

--color: #1b5e7d;
/* rgb */ color: rgb(27, 94, 125);
/* oklch */ color: oklch(45.6% 0.082 233.1);

Tailwind

colors: {
  custom: {
    50: '#678ba2',
    500: '#1b5e7d',
    950: '#000000',
  },
}

SCSS

$custom: #1b5e7d;
$custom-light: #678ba2;
$custom-dark: #000000;

JSON

{
  "hex": "#1b5e7d",
  "rgb": {
    "r": 27,
    "g": 94,
    "b": 125
  },
  "hsl": {
    "h": 198.98,
    "s": 64.474,
    "l": 29.804
  },
  "oklch": {
    "l": 0.4556,
    "c": 0.08208,
    "h": 233.1
  },
  "luminance": 0.09719
}

Semantic roles & 50–950 ramp

primary

#1B5E7D

secondary

#B16643

accent

#7540E7

background

#F6F8FA

surface

#EBF0F3

border

#C6CBCD

text

#070C0F

muted

#7A7D7F

Preview Lab

Preview with #1B5E7D

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

Preview Lab → · Contrast checker → · Palette generator →