#1D598B#1D598B

#1D598B is a mid, moderate cyan. Relative luminance 0.093; OKLCH L 45.1% C 0.102 H 247.8°. Best body text is #FFFFFF at 7.36:1 contrast (WCAG AA passes).

Color values

HEX	#1D598B
RGB	rgb(29, 89, 139)
HSL	hsl(207, 65%, 33%)
HSV	hsv(207, 79%, 55%)
CMYK	cmyk(79.1%, 36%, 0%, 45.5%)
CIE-LAB	lab(36.50, -0.62, -33.17)
CIE-LCH	lch(36.50, 33.17, 268.93°)
OKLab	oklab(45.15% -0.0385 -0.0943)
OKLCH	oklch(45.15% 0.102 247.8)
XYZ	xyz(8.7375, 9.2690, 25.7497)
Luminance	0.0927 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1D598B #8B4F1D

analogous

#1D8B86 #1D598B #1D228B

triadic

#1D598B #8B1D59 #598B1D

tetradic

#1D598B #861D8B #8B4F1D #228B1D

square

#1D598B #861D8B #8B4F1D #228B1D

split-complementary

#1D598B #8B1D22 #8B861D

monochromatic

#081826 #123958 #1D598B #2879BE #4998D9

Accessibility & contrast

On white

7.36

#1D598B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.85

#1D598B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1D598B

7.36:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1D598B	#FFFFFF	#000000	##FFFFFF
##1D598B	1.00	7.36	2.85	7.36
#FFFFFF	7.36	1.00	21.00	1.00
#000000	2.85	21.00	1.00	21.00
##FFFFFF	7.36	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#425B8D

Deuteranopia (green-blind)

#32518A

Tritanopia (blue-blind)

#00656B

Achromatopsia (no color)

#565656

Design tokens & code

CSS

--color: #1d598b;
/* rgb */ color: rgb(29, 89, 139);
/* oklch */ color: oklch(45.1% 0.102 247.8);

Tailwind

colors: {
  custom: {
    50: '#6a87ad',
    500: '#1d598b',
    950: '#000000',
  },
}

SCSS

$custom: #1d598b;
$custom-light: #6a87ad;
$custom-dark: #000000;

JSON

{
  "hex": "#1d598b",
  "rgb": {
    "r": 29,
    "g": 89,
    "b": 139
  },
  "hsl": {
    "h": 207.273,
    "s": 65.476,
    "l": 32.941
  },
  "oklch": {
    "l": 0.45148,
    "c": 0.10189,
    "h": 247.8
  },
  "luminance": 0.0927
}

Semantic roles & 50–950 ramp

primary

#1D598B

secondary

#BB7D49

accent

#8C3FE8

background

#F6F8FA

surface

#ECEFF4

border

#C7CACE

text

#070B10

muted

#7A7C7F

Preview Lab

Preview with #1D598B

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

Preview Lab → · Contrast checker → · Palette generator →