#1A588D#1A588D

#1A588D is a dark, moderate cyan. Relative luminance 0.091; OKLCH L 44.9% C 0.106 H 248.8°. Best body text is #FFFFFF at 7.44:1 contrast (WCAG AA passes).

Color values

HEX	#1A588D
RGB	rgb(26, 88, 141)
HSL	hsl(208, 69%, 33%)
HSV	hsv(208, 82%, 55%)
CMYK	cmyk(81.6%, 37.6%, 0%, 44.7%)
CIE-LAB	lab(36.22, 0.45, -34.83)
CIE-LCH	lch(36.22, 34.84, 270.74°)
OKLab	oklab(44.94% -0.0385 -0.0993)
OKLCH	oklch(44.94% 0.106 248.8)
XYZ	xyz(8.7216, 9.1211, 26.4950)
Luminance	0.0912 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1A588D #8D4F1A

analogous

#1A8D88 #1A588D #1A1F8D

triadic

#1A588D #8D1A58 #588D1A

tetradic

#1A588D #881A8D #8D4F1A #1F8D1A

square

#1A588D #881A8D #8D4F1A #1F8D1A

split-complementary

#1A588D #8D1A1F #8D881A

monochromatic

#071826 #103859 #1A588D #2478C1 #4597DD

Accessibility & contrast

On white

7.44

#1A588D on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.82

#1A588D on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1A588D

7.44:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1A588D	#FFFFFF	#000000	##FFFFFF
##1A588D	1.00	7.44	2.82	7.44
#FFFFFF	7.44	1.00	21.00	1.00
#000000	2.82	21.00	1.00	21.00
##FFFFFF	7.44	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#3F5B8F

Deuteranopia (green-blind)

#2E508C

Tritanopia (blue-blind)

#00656B

Achromatopsia (no color)

#555555

Design tokens & code

CSS

--color: #1a588d;
/* rgb */ color: rgb(26, 88, 141);
/* oklch */ color: oklch(44.9% 0.106 248.8);

Tailwind

colors: {
  custom: {
    50: '#6a86ae',
    500: '#1a588d',
    950: '#000000',
  },
}

SCSS

$custom: #1a588d;
$custom-light: #6a86ae;
$custom-dark: #000000;

JSON

{
  "hex": "#1a588d",
  "rgb": {
    "r": 26,
    "g": 88,
    "b": 141
  },
  "hsl": {
    "h": 207.652,
    "s": 68.862,
    "l": 32.745
  },
  "oklch": {
    "l": 0.44941,
    "c": 0.10649,
    "h": 248.8
  },
  "luminance": 0.09122
}

Semantic roles & 50–950 ramp

primary

#1A588D

secondary

#BE7D45

accent

#8D3CEC

background

#F6F8FA

surface

#ECEFF4

border

#C7CACE

text

#070B10

muted

#7A7C7F

Preview Lab

Preview with #1A588D

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

Preview Lab → · Contrast checker → · Palette generator →