#1D5597#1D5597

#1D5597 is a dark, vivid cyan. Relative luminance 0.090; OKLCH L 45.0% C 0.122 H 255.0°. Best body text is #FFFFFF at 7.50:1 contrast (WCAG AA passes).

Color values

HEX	#1D5597
RGB	rgb(29, 85, 151)
HSL	hsl(212, 68%, 35%)
HSV	hsv(212, 81%, 59%)
CMYK	cmyk(80.8%, 43.7%, 0%, 40.8%)
CIE-LAB	lab(35.97, 6.72, -41.28)
CIE-LCH	lch(35.97, 41.83, 279.25°)
OKLab	oklab(44.96% -0.0317 -0.1182)
OKLCH	oklch(44.96% 0.122 255)
XYZ	xyz(9.3390, 8.9915, 30.5155)
Luminance	0.0899 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1D5597 #975F1D

analogous

#1D9297 #1D5597 #221D97

triadic

#1D5597 #971D55 #55971D

tetradic

#1D5597 #971D92 #975F1D #1D9722

square

#1D5597 #971D92 #975F1D #1D9722

split-complementary

#1D5597 #97221D #92971D

monochromatic

#091B30 #133864 #1D5597 #2772CA #5191DE

Accessibility & contrast

On white

7.50

#1D5597 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.80

#1D5597 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1D5597

7.50:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1D5597	#FFFFFF	#000000	##FFFFFF
##1D5597	1.00	7.50	2.80	7.50
#FFFFFF	7.50	1.00	21.00	1.00
#000000	2.80	21.00	1.00	21.00
##FFFFFF	7.50	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#345B9A

Deuteranopia (green-blind)

#1D5096

Tritanopia (blue-blind)

#00656E

Achromatopsia (no color)

#555555

Design tokens & code

CSS

--color: #1d5597;
/* rgb */ color: rgb(29, 85, 151);
/* oklch */ color: oklch(45.0% 0.122 255.0);

Tailwind

colors: {
  custom: {
    50: '#6d84b6',
    500: '#1d5597',
    950: '#000000',
  },
}

SCSS

$custom: #1d5597;
$custom-light: #6d84b6;
$custom-dark: #000000;

JSON

{
  "hex": "#1d5597",
  "rgb": {
    "r": 29,
    "g": 85,
    "b": 151
  },
  "hsl": {
    "h": 212.459,
    "s": 67.778,
    "l": 35.294
  },
  "oklch": {
    "l": 0.44964,
    "c": 0.12242,
    "h": 255
  },
  "luminance": 0.08993
}

Semantic roles & 50–950 ramp

primary

#1D5597

secondary

#C08D4F

accent

#9B3DEB

background

#F7F8FB

surface

#EDEFF6

border

#C8CAD0

text

#080A11

muted

#7B7C80

Preview Lab

Preview with #1D5597

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

Preview Lab → · Contrast checker → · Palette generator →