#1B507A#1B507A

#1B507A is a dark, moderate cyan. Relative luminance 0.074; OKLCH L 41.8% C 0.089 H 246.3°. Best body text is #FFFFFF at 8.48:1 contrast (WCAG AA passes).

Color values

HEX	#1B507A
RGB	rgb(27, 80, 122)
HSL	hsl(207, 64%, 29%)
HSV	hsv(207, 78%, 48%)
CMYK	cmyk(77.9%, 34.4%, 0%, 52.2%)
CIE-LAB	lab(32.65, -1.78, -28.81)
CIE-LCH	lch(32.65, 28.86, 266.46°)
OKLab	oklab(41.8% -0.0358 -0.0818)
OKLCH	oklch(41.8% 0.089 246.3)
XYZ	xyz(6.8322, 7.3747, 19.4720)
Luminance	0.0737 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1B507A #7A451B

analogous

#1B7A75 #1B507A #1B217A

triadic

#1B507A #7A1B50 #507A1B

tetradic

#1B507A #751B7A #7A451B #217A1B

square

#1B507A #751B7A #7A451B #217A1B

split-complementary

#1B507A #7A1B21 #7A751B

monochromatic

#061019 #102F48 #1B507A #2671AC #3C91D4

Accessibility & contrast

On white

8.48

#1B507A on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.47

#1B507A on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1B507A

8.48:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1B507A	#FFFFFF	#000000	##FFFFFF
##1B507A	1.00	8.48	2.47	8.48
#FFFFFF	8.48	1.00	21.00	1.00
#000000	2.47	21.00	1.00	21.00
##FFFFFF	8.48	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#3D527C

Deuteranopia (green-blind)

#2F4979

Tritanopia (blue-blind)

#005A5F

Achromatopsia (no color)

#4D4D4D

Design tokens & code

CSS

--color: #1b507a;
/* rgb */ color: rgb(27, 80, 122);
/* oklch */ color: oklch(41.8% 0.089 246.3);

Tailwind

colors: {
  custom: {
    50: '#6680a0',
    500: '#1b507a',
    950: '#000000',
  },
}

SCSS

$custom: #1b507a;
$custom-light: #6680a0;
$custom-dark: #000000;

JSON

{
  "hex": "#1b507a",
  "rgb": {
    "r": 27,
    "g": 80,
    "b": 122
  },
  "hsl": {
    "h": 206.526,
    "s": 63.758,
    "l": 29.216
  },
  "oklch": {
    "l": 0.41795,
    "c": 0.08929,
    "h": 246.3
  },
  "luminance": 0.07375
}

Semantic roles & 50–950 ramp

primary

#1B507A

secondary

#AE7243

accent

#8A41E7

background

#F6F7F9

surface

#EBEEF2

border

#C6C9CC

text

#070A0F

muted

#7A7C7E

Preview Lab

Preview with #1B507A

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

Preview Lab → · Contrast checker → · Palette generator →