#1B5C8C#1B5C8C

#1B5C8C is a mid, moderate cyan. Relative luminance 0.098; OKLCH L 45.9% C 0.101 H 245.3°. Best body text is #FFFFFF at 7.10:1 contrast (WCAG AA passes).

Color values

HEX	#1B5C8C
RGB	rgb(27, 92, 140)
HSL	hsl(205, 68%, 33%)
HSV	hsv(205, 81%, 55%)
CMYK	cmyk(80.7%, 34.3%, 0%, 45.1%)
CIE-LAB	lab(37.44, -2.37, -32.28)
CIE-LCH	lch(37.44, 32.37, 265.79°)
OKLab	oklab(45.9% -0.0421 -0.0917)
OKLCH	oklch(45.9% 0.101 245.3)
XYZ	xyz(9.0109, 9.7797, 26.2186)
Luminance	0.0978 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1B5C8C #8C4B1B

analogous

#1B8C84 #1B5C8C #1B238C

triadic

#1B5C8C #8C1B5C #5C8C1B

tetradic

#1B5C8C #841B8C #8C4B1B #238C1B

square

#1B5C8C #841B8C #8C4B1B #238C1B

split-complementary

#1B5C8C #8C1B23 #8C841B

monochromatic

#071925 #113A59 #1B5C8C #257EBF #469CDB

Accessibility & contrast

On white

7.10

#1B5C8C on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.96

#1B5C8C on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1B5C8C

7.10:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1B5C8C	#FFFFFF	#000000	##FFFFFF
##1B5C8C	1.00	7.10	2.96	7.10
#FFFFFF	7.10	1.00	21.00	1.00
#000000	2.96	21.00	1.00	21.00
##FFFFFF	7.10	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#465E8E

Deuteranopia (green-blind)

#36538B

Tritanopia (blue-blind)

#00686D

Achromatopsia (no color)

#585858

Design tokens & code

CSS

--color: #1b5c8c;
/* rgb */ color: rgb(27, 92, 140);
/* oklch */ color: oklch(45.9% 0.101 245.3);

Tailwind

colors: {
  custom: {
    50: '#6a89ae',
    500: '#1b5c8c',
    950: '#000000',
  },
}

SCSS

$custom: #1b5c8c;
$custom-light: #6a89ae;
$custom-dark: #000000;

JSON

{
  "hex": "#1b5c8c",
  "rgb": {
    "r": 27,
    "g": 92,
    "b": 140
  },
  "hsl": {
    "h": 205.487,
    "s": 67.665,
    "l": 32.745
  },
  "oklch": {
    "l": 0.45897,
    "c": 0.10093,
    "h": 245.3
  },
  "luminance": 0.09781
}

Semantic roles & 50–950 ramp

primary

#1B5C8C

secondary

#BD7846

accent

#873DEB

background

#F6F8FA

surface

#ECF0F4

border

#C7CBCE

text

#070B10

muted

#7A7C7F

Preview Lab

Preview with #1B5C8C

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

Preview Lab → · Contrast checker → · Palette generator →