#1A588F#1A588F

#1A588F is a mid, moderate cyan. Relative luminance 0.092; OKLCH L 45.1% C 0.109 H 249.6°. Best body text is #FFFFFF at 7.40:1 contrast (WCAG AA passes).

Color values

HEX	#1A588F
RGB	rgb(26, 88, 143)
HSL	hsl(208, 69%, 33%)
HSV	hsv(208, 82%, 56%)
CMYK	cmyk(81.8%, 38.5%, 0%, 43.9%)
CIE-LAB	lab(36.33, 1.25, -35.87)
CIE-LCH	lch(36.33, 35.89, 271.99°)
OKLab	oklab(45.07% -0.038 -0.1023)
OKLCH	oklch(45.07% 0.109 249.6)
XYZ	xyz(8.8718, 9.1812, 27.2858)
Luminance	0.0918 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1A588F #8F511A

analogous

#1A8F8B #1A588F #1A1D8F

triadic

#1A588F #8F1A58 #588F1A

tetradic

#1A588F #8B1A8F #8F511A #1D8F1A

square

#1A588F #8B1A8F #8F511A #1D8F1A

split-complementary

#1A588F #8F1A1D #8F8B1A

monochromatic

#071827 #11385B #1A588F #2378C3 #4696DD

Accessibility & contrast

On white

7.40

#1A588F on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.84

#1A588F on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1A588F

7.40:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1A588F	#FFFFFF	#000000	##FFFFFF
##1A588F	1.00	7.40	2.84	7.40
#FFFFFF	7.40	1.00	21.00	1.00
#000000	2.84	21.00	1.00	21.00
##FFFFFF	7.40	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#3E5B91

Deuteranopia (green-blind)

#2C518E

Tritanopia (blue-blind)

#00656C

Achromatopsia (no color)

#555555

Design tokens & code

CSS

--color: #1a588f;
/* rgb */ color: rgb(26, 88, 143);
/* oklch */ color: oklch(45.1% 0.109 249.6);

Tailwind

colors: {
  custom: {
    50: '#6a86b0',
    500: '#1a588f',
    950: '#000000',
  },
}

SCSS

$custom: #1a588f;
$custom-light: #6a86b0;
$custom-dark: #000000;

JSON

{
  "hex": "#1a588f",
  "rgb": {
    "r": 26,
    "g": 88,
    "b": 143
  },
  "hsl": {
    "h": 208.205,
    "s": 69.231,
    "l": 33.137
  },
  "oklch": {
    "l": 0.45068,
    "c": 0.10913,
    "h": 249.6
  },
  "luminance": 0.09182
}

Semantic roles & 50–950 ramp

primary

#1A588F

secondary

#BF7F46

accent

#8F3CEC

background

#F6F8FA

surface

#ECEFF5

border

#C7CACF

text

#080B10

muted

#7A7C7F

Preview Lab

Preview with #1A588F

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

Preview Lab → · Contrast checker → · Palette generator →