#1A588B#1A588B

#1A588B is a dark, moderate cyan. Relative luminance 0.091; OKLCH L 44.8% C 0.104 H 247.9°. Best body text is #FFFFFF at 7.47:1 contrast (WCAG AA passes).

Color values

HEX	#1A588B
RGB	rgb(26, 88, 139)
HSL	hsl(207, 68%, 32%)
HSV	hsv(207, 81%, 55%)
CMYK	cmyk(81.3%, 36.7%, 0%, 45.5%)
CIE-LAB	lab(36.10, -0.34, -33.80)
CIE-LCH	lch(36.10, 33.80, 269.42°)
OKLab	oklab(44.82% -0.0391 -0.0962)
OKLCH	oklch(44.82% 0.104 247.9)
XYZ	xyz(8.5741, 9.0621, 25.7184)
Luminance	0.0906 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1A588B #8B4D1A

analogous

#1A8B86 #1A588B #1A1F8B

triadic

#1A588B #8B1A58 #588B1A

tetradic

#1A588B #861A8B #8B4D1A #1F8B1A

square

#1A588B #861A8B #8B4D1A #1F8B1A

split-complementary

#1A588B #8B1A1F #8B861A

monochromatic

#071724 #103757 #1A588B #2479BF #4397DC

Accessibility & contrast

On white

7.47

#1A588B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.81

#1A588B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1A588B

7.47:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1A588B	#FFFFFF	#000000	##FFFFFF
##1A588B	1.00	7.47	2.81	7.47
#FFFFFF	7.47	1.00	21.00	1.00
#000000	2.81	21.00	1.00	21.00
##FFFFFF	7.47	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#405B8D

Deuteranopia (green-blind)

#2F508A

Tritanopia (blue-blind)

#00646B

Achromatopsia (no color)

#555555

Design tokens & code

CSS

--color: #1a588b;
/* rgb */ color: rgb(26, 88, 139);
/* oklch */ color: oklch(44.8% 0.104 247.9);

Tailwind

colors: {
  custom: {
    50: '#6986ad',
    500: '#1a588b',
    950: '#000000',
  },
}

SCSS

$custom: #1a588b;
$custom-light: #6986ad;
$custom-dark: #000000;

JSON

{
  "hex": "#1a588b",
  "rgb": {
    "r": 26,
    "g": 88,
    "b": 139
  },
  "hsl": {
    "h": 207.08,
    "s": 68.485,
    "l": 32.353
  },
  "oklch": {
    "l": 0.44816,
    "c": 0.10388,
    "h": 247.9
  },
  "luminance": 0.09063
}

Semantic roles & 50–950 ramp

primary

#1A588B

secondary

#BD7A44

accent

#8B3CEB

background

#F6F8FA

surface

#ECEFF4

border

#C7CACE

text

#070B10

muted

#7A7C7F

Preview Lab

Preview with #1A588B

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

Preview Lab → · Contrast checker → · Palette generator →