#1A588C#1A588C

#1A588C is a dark, moderate cyan. Relative luminance 0.091; OKLCH L 44.9% C 0.105 H 248.3°. Best body text is #FFFFFF at 7.45:1 contrast (WCAG AA passes).

Color values

HEX	#1A588C
RGB	rgb(26, 88, 140)
HSL	hsl(207, 69%, 33%)
HSV	hsv(207, 81%, 55%)
CMYK	cmyk(81.4%, 37.1%, 0%, 45.1%)
CIE-LAB	lab(36.16, 0.05, -34.32)
CIE-LCH	lch(36.16, 34.32, 270.09°)
OKLab	oklab(44.88% -0.0388 -0.0978)
OKLCH	oklch(44.88% 0.105 248.3)
XYZ	xyz(8.6475, 9.0915, 26.1049)
Luminance	0.0909 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1A588C #8C4E1A

analogous

#1A8C87 #1A588C #1A1F8C

triadic

#1A588C #8C1A58 #588C1A

tetradic

#1A588C #871A8C #8C4E1A #1F8C1A

square

#1A588C #871A8C #8C4E1A #1F8C1A

split-complementary

#1A588C #8C1A1F #8C871A

monochromatic

#071725 #103858 #1A588C #2478C0 #4497DC

Accessibility & contrast

On white

7.45

#1A588C on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.82

#1A588C on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1A588C

7.45:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1A588C	#FFFFFF	#000000	##FFFFFF
##1A588C	1.00	7.45	2.82	7.45
#FFFFFF	7.45	1.00	21.00	1.00
#000000	2.82	21.00	1.00	21.00
##FFFFFF	7.45	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#405B8E

Deuteranopia (green-blind)

#2F508B

Tritanopia (blue-blind)

#00646B

Achromatopsia (no color)

#555555

Design tokens & code

CSS

--color: #1a588c;
/* rgb */ color: rgb(26, 88, 140);
/* oklch */ color: oklch(44.9% 0.105 248.3);

Tailwind

colors: {
  custom: {
    50: '#6a86ae',
    500: '#1a588c',
    950: '#000000',
  },
}

SCSS

$custom: #1a588c;
$custom-light: #6a86ae;
$custom-dark: #000000;

JSON

{
  "hex": "#1a588c",
  "rgb": {
    "r": 26,
    "g": 88,
    "b": 140
  },
  "hsl": {
    "h": 207.368,
    "s": 68.675,
    "l": 32.549
  },
  "oklch": {
    "l": 0.44878,
    "c": 0.10519,
    "h": 248.3
  },
  "luminance": 0.09093
}

Semantic roles & 50–950 ramp

primary

#1A588C

secondary

#BE7C44

accent

#8C3CEC

background

#F6F8FA

surface

#ECEFF4

border

#C7CACE

text

#070B10

muted

#7A7C7F

Preview Lab

Preview with #1A588C

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

Preview Lab → · Contrast checker → · Palette generator →