#1D598F#1D598F

#1D598F is a mid, moderate cyan. Relative luminance 0.094; OKLCH L 45.4% C 0.107 H 249.6°. Best body text is #FFFFFF at 7.30:1 contrast (WCAG AA passes).

Color values

HEX	#1D598F
RGB	rgb(29, 89, 143)
HSL	hsl(208, 66%, 34%)
HSV	hsv(208, 80%, 56%)
CMYK	cmyk(79.7%, 37.8%, 0%, 43.9%)
CIE-LAB	lab(36.72, 0.95, -35.24)
CIE-LCH	lch(36.72, 35.26, 271.54°)
OKLab	oklab(45.4% -0.0373 -0.1004)
OKLCH	oklch(45.4% 0.107 249.6)
XYZ	xyz(9.0351, 9.3881, 27.3172)
Luminance	0.0939 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1D598F #8F531D

analogous

#1D8F8C #1D598F #1D208F

triadic

#1D598F #8F1D59 #598F1D

tetradic

#1D598F #8C1D8F #8F531D #208F1D

square

#1D598F #8C1D8F #8F531D #208F1D

split-complementary

#1D598F #8F1D20 #8F8C1D

monochromatic

#081A29 #13395C #1D598F #2779C2 #4C97DB

Accessibility & contrast

On white

7.30

#1D598F on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.88

#1D598F on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1D598F

7.30:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1D598F	#FFFFFF	#000000	##FFFFFF
##1D598F	1.00	7.30	2.88	7.30
#FFFFFF	7.30	1.00	21.00	1.00
#000000	2.88	21.00	1.00	21.00
##FFFFFF	7.30	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#405C91

Deuteranopia (green-blind)

#2F528E

Tritanopia (blue-blind)

#00666D

Achromatopsia (no color)

#565656

Design tokens & code

CSS

--color: #1d598f;
/* rgb */ color: rgb(29, 89, 143);
/* oklch */ color: oklch(45.4% 0.107 249.6);

Tailwind

colors: {
  custom: {
    50: '#6b87b0',
    500: '#1d598f',
    950: '#000000',
  },
}

SCSS

$custom: #1d598f;
$custom-light: #6b87b0;
$custom-dark: #000000;

JSON

{
  "hex": "#1d598f",
  "rgb": {
    "r": 29,
    "g": 89,
    "b": 143
  },
  "hsl": {
    "h": 208.421,
    "s": 66.279,
    "l": 33.725
  },
  "oklch": {
    "l": 0.45397,
    "c": 0.10714,
    "h": 249.6
  },
  "luminance": 0.09389
}

Semantic roles & 50–950 ramp

primary

#1D598F

secondary

#BD814B

accent

#8F3FE9

background

#F6F8FA

surface

#ECEFF5

border

#C7CACF

text

#080B10

muted

#7A7C7F

Preview Lab

Preview with #1D598F

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

Preview Lab → · Contrast checker → · Palette generator →