#1D5399#1D5399

#1D5399 is a dark, vivid cyan. Relative luminance 0.087; OKLCH L 44.6% C 0.128 H 256.6°. Best body text is #FFFFFF at 7.64:1 contrast (WCAG AA passes).

Color values

HEX	#1D5399
RGB	rgb(29, 83, 153)
HSL	hsl(214, 68%, 36%)
HSV	hsv(214, 81%, 60%)
CMYK	cmyk(81%, 45.8%, 0%, 40%)
CIE-LAB	lab(35.49, 8.85, -43.25)
CIE-LCH	lch(35.49, 44.15, 281.56°)
OKLab	oklab(44.64% -0.0296 -0.1241)
OKLCH	oklch(44.64% 0.128 256.6)
XYZ	xyz(9.3476, 8.7465, 31.3264)
Luminance	0.0875 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1D5399 #99631D

analogous

#1D9199 #1D5399 #251D99

triadic

#1D5399 #991D53 #53991D

tetradic

#1D5399 #991D91 #99631D #1D9925

square

#1D5399 #991D91 #99631D #1D9925

split-complementary

#1D5399 #99251D #91991D

monochromatic

#091B32 #133766 #1D5399 #276FCC #528FDE

Accessibility & contrast

On white

7.64

#1D5399 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.75

#1D5399 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1D5399

7.64:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1D5399	#FFFFFF	#000000	##FFFFFF
##1D5399	1.00	7.64	2.75	7.64
#FFFFFF	7.64	1.00	21.00	1.00
#000000	2.75	21.00	1.00	21.00
##FFFFFF	7.64	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#2E599C

Deuteranopia (green-blind)

#134E98

Tritanopia (blue-blind)

#00646E

Achromatopsia (no color)

#535353

Design tokens & code

CSS

--color: #1d5399;
/* rgb */ color: rgb(29, 83, 153);
/* oklch */ color: oklch(44.6% 0.128 256.6);

Tailwind

colors: {
  custom: {
    50: '#6e82b7',
    500: '#1d5399',
    950: '#000000',
  },
}

SCSS

$custom: #1d5399;
$custom-light: #6e82b7;
$custom-dark: #000000;

JSON

{
  "hex": "#1d5399",
  "rgb": {
    "r": 29,
    "g": 83,
    "b": 153
  },
  "hsl": {
    "h": 213.871,
    "s": 68.132,
    "l": 35.686
  },
  "oklch": {
    "l": 0.44636,
    "c": 0.12755,
    "h": 256.6
  },
  "luminance": 0.08748
}

Semantic roles & 50–950 ramp

primary

#1D5399

secondary

#C19051

accent

#9F3DEB

background

#F7F7FB

surface

#EDEEF6

border

#C8C9D0

text

#080A11

muted

#7B7C80

Preview Lab

Preview with #1D5399

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

Preview Lab → · Contrast checker → · Palette generator →