#1A577D#1A577D

#1A577D is a dark, moderate cyan. Relative luminance 0.085; OKLCH L 43.7% C 0.087 H 240.8°. Best body text is #FFFFFF at 7.77:1 contrast (WCAG AA passes).

Color values

HEX	#1A577D
RGB	rgb(26, 87, 125)
HSL	hsl(203, 66%, 30%)
HSV	hsv(203, 79%, 49%)
CMYK	cmyk(79.2%, 30.4%, 0%, 51%)
CIE-LAB	lab(35.03, -5.19, -26.91)
CIE-LCH	lch(35.03, 27.40, 259.08°)
OKLab	oklab(43.73% -0.0425 -0.0761)
OKLCH	oklch(43.73% 0.087 240.8)
XYZ	xyz(7.5344, 8.5158, 20.6447)
Luminance	0.0852 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1A577D #7D401A

analogous

#1A7D72 #1A577D #1A267D

triadic

#1A577D #7D1A57 #577D1A

tetradic

#1A577D #721A7D #7D401A #267D1A

square

#1A577D #721A7D #7D401A #267D1A

split-complementary

#1A577D #7D1A26 #7D721A

monochromatic

#051219 #0F344A #1A577D #257AB0 #3B9BD6

Accessibility & contrast

On white

7.77

#1A577D on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.70

#1A577D on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1A577D

7.77:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1A577D	#FFFFFF	#000000	##FFFFFF
##1A577D	1.00	7.77	2.70	7.77
#FFFFFF	7.77	1.00	21.00	1.00
#000000	2.70	21.00	1.00	21.00
##FFFFFF	7.77	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#45587F

Deuteranopia (green-blind)

#384E7C

Tritanopia (blue-blind)

#006064

Achromatopsia (no color)

#525252

Design tokens & code

CSS

--color: #1a577d;
/* rgb */ color: rgb(26, 87, 125);
/* oklch */ color: oklch(43.7% 0.087 240.8);

Tailwind

colors: {
  custom: {
    50: '#6786a3',
    500: '#1a577d',
    950: '#000000',
  },
}

SCSS

$custom: #1a577d;
$custom-light: #6786a3;
$custom-dark: #000000;

JSON

{
  "hex": "#1a577d",
  "rgb": {
    "r": 26,
    "g": 87,
    "b": 125
  },
  "hsl": {
    "h": 203.03,
    "s": 65.563,
    "l": 29.608
  },
  "oklch": {
    "l": 0.43727,
    "c": 0.08723,
    "h": 240.8
  },
  "luminance": 0.08517
}

Semantic roles & 50–950 ramp

primary

#1A577D

secondary

#B16C42

accent

#803FE9

background

#F6F8FA

surface

#EBEFF3

border

#C6CACD

text

#070B0F

muted

#7A7C7F

Preview Lab

Preview with #1A577D

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

Preview Lab → · Contrast checker → · Palette generator →