#1D577A#1D577A

#1D577A is a dark, moderate cyan. Relative luminance 0.085; OKLCH L 43.6% C 0.082 H 239.4°. Best body text is #FFFFFF at 7.79:1 contrast (WCAG AA passes).

Color values

HEX	#1D577A
RGB	rgb(29, 87, 122)
HSL	hsl(203, 62%, 30%)
HSV	hsv(203, 76%, 48%)
CMYK	cmyk(76.2%, 28.7%, 0%, 52.2%)
CIE-LAB	lab(34.97, -5.93, -25.16)
CIE-LCH	lch(34.97, 25.85, 256.74°)
OKLab	oklab(43.65% -0.0419 -0.071)
OKLCH	oklch(43.65% 0.082 239.4)
XYZ	xyz(7.4264, 8.4819, 19.6544)
Luminance	0.0848 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1D577A #7A401D

analogous

#1D7A6F #1D577A #1D287A

triadic

#1D577A #7A1D57 #577A1D

tetradic

#1D577A #6F1D7A #7A401D #287A1D

square

#1D577A #6F1D7A #7A401D #287A1D

split-complementary

#1D577A #7A1D28 #7A6F1D

monochromatic

#061219 #113449 #1D577A #297AAB #409BD2

Accessibility & contrast

On white

7.79

#1D577A on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.70

#1D577A on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1D577A

7.79:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1D577A	#FFFFFF	#000000	##FFFFFF
##1D577A	1.00	7.79	2.70	7.79
#FFFFFF	7.79	1.00	21.00	1.00
#000000	2.70	21.00	1.00	21.00
##FFFFFF	7.79	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#47577C

Deuteranopia (green-blind)

#3A4E79

Tritanopia (blue-blind)

#006063

Achromatopsia (no color)

#525252

Design tokens & code

CSS

--color: #1d577a;
/* rgb */ color: rgb(29, 87, 122);
/* oklch */ color: oklch(43.6% 0.082 239.4);

Tailwind

colors: {
  custom: {
    50: '#6786a0',
    500: '#1d577a',
    950: '#000000',
  },
}

SCSS

$custom: #1d577a;
$custom-light: #6786a0;
$custom-dark: #000000;

JSON

{
  "hex": "#1d577a",
  "rgb": {
    "r": 29,
    "g": 87,
    "b": 122
  },
  "hsl": {
    "h": 202.581,
    "s": 61.589,
    "l": 29.608
  },
  "oklch": {
    "l": 0.43647,
    "c": 0.08249,
    "h": 239.4
  },
  "luminance": 0.08483
}

Semantic roles & 50–950 ramp

primary

#1D577A

secondary

#AE6C45

accent

#8043E5

background

#F6F8F9

surface

#EBEFF2

border

#C6CACC

text

#070B0E

muted

#7A7C7E

Preview Lab

Preview with #1D577A

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

Preview Lab → · Contrast checker → · Palette generator →