#1D5B8D#1D5B8D

#1D5B8D is a mid, moderate cyan. Relative luminance 0.097; OKLCH L 45.8% C 0.102 H 247.2°. Best body text is #FFFFFF at 7.16:1 contrast (WCAG AA passes).

Color values

HEX	#1D5B8D
RGB	rgb(29, 91, 141)
HSL	hsl(207, 66%, 33%)
HSV	hsv(207, 79%, 55%)
CMYK	cmyk(79.4%, 35.5%, 0%, 44.7%)
CIE-LAB	lab(37.24, -1.11, -33.22)
CIE-LCH	lch(37.24, 33.23, 268.08°)
OKLab	oklab(45.76% -0.0398 -0.0945)
OKLCH	oklch(45.76% 0.103 247.2)
XYZ	xyz(9.0537, 9.6654, 26.5826)
Luminance	0.0967 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1D5B8D #8D4F1D

analogous

#1D8D87 #1D5B8D #1D238D

triadic

#1D5B8D #8D1D5B #5B8D1D

tetradic

#1D5B8D #871D8D #8D4F1D #238D1D

square

#1D5B8D #871D8D #8D4F1D #238D1D

split-complementary

#1D5B8D #8D1D23 #8D871D

monochromatic

#081927 #133A5A #1D5B8D #277CC0 #4B9ADA

Accessibility & contrast

On white

7.16

#1D5B8D on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.93

#1D5B8D on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1D5B8D

7.16:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1D5B8D	#FFFFFF	#000000	##FFFFFF
##1D5B8D	1.00	7.16	2.93	7.16
#FFFFFF	7.16	1.00	21.00	1.00
#000000	2.93	21.00	1.00	21.00
##FFFFFF	7.16	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#445D8F

Deuteranopia (green-blind)

#34538C

Tritanopia (blue-blind)

#00676D

Achromatopsia (no color)

#585858

Design tokens & code

CSS

--color: #1d5b8d;
/* rgb */ color: rgb(29, 91, 141);
/* oklch */ color: oklch(45.8% 0.102 247.2);

Tailwind

colors: {
  custom: {
    50: '#6b89ae',
    500: '#1d5b8d',
    950: '#000000',
  },
}

SCSS

$custom: #1d5b8d;
$custom-light: #6b89ae;
$custom-dark: #000000;

JSON

{
  "hex": "#1d5b8d",
  "rgb": {
    "r": 29,
    "g": 91,
    "b": 141
  },
  "hsl": {
    "h": 206.786,
    "s": 65.882,
    "l": 33.333
  },
  "oklch": {
    "l": 0.45764,
    "c": 0.1025,
    "h": 247.2
  },
  "luminance": 0.09666
}

Semantic roles & 50–950 ramp

primary

#1D5B8D

secondary

#BC7D4A

accent

#8B3FE9

background

#F6F8FA

surface

#ECEFF4

border

#C7CACE

text

#080B10

muted

#7A7C7F

Preview Lab

Preview with #1D5B8D

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

Preview Lab → · Contrast checker → · Palette generator →