#1E588B#1E588B

#1E588B is a dark, moderate cyan. Relative luminance 0.091; OKLCH L 44.9% C 0.103 H 248.9°. Best body text is #FFFFFF at 7.44:1 contrast (WCAG AA passes).

Color values

HEX	#1E588B
RGB	rgb(30, 88, 139)
HSL	hsl(208, 64%, 33%)
HSV	hsv(208, 78%, 55%)
CMYK	cmyk(78.4%, 36.7%, 0%, 45.5%)
CIE-LAB	lab(36.21, 0.14, -33.62)
CIE-LCH	lch(36.21, 33.62, 270.25°)
OKLab	oklab(44.93% -0.0369 -0.0957)
OKLCH	oklch(44.93% 0.103 248.9)
XYZ	xyz(8.6836, 9.1185, 25.7235)
Luminance	0.0912 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1E588B #8B511E

analogous

#1E8B87 #1E588B #1E228B

triadic

#1E588B #8B1E58 #588B1E

tetradic

#1E588B #871E8B #8B511E #228B1E

square

#1E588B #871E8B #8B511E #228B1E

split-complementary

#1E588B #8B1E22 #8B871E

monochromatic

#081826 #133859 #1E588B #2978BD #4B96D8

Accessibility & contrast

On white

7.44

#1E588B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.82

#1E588B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1E588B

7.44:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1E588B	#FFFFFF	#000000	##FFFFFF
##1E588B	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)

#405B8D

Deuteranopia (green-blind)

#30518A

Tritanopia (blue-blind)

#00646B

Achromatopsia (no color)

#555555

Design tokens & code

CSS

--color: #1e588b;
/* rgb */ color: rgb(30, 88, 139);
/* oklch */ color: oklch(44.9% 0.103 248.9);

Tailwind

colors: {
  custom: {
    50: '#6b86ad',
    500: '#1e588b',
    950: '#000000',
  },
}

SCSS

$custom: #1e588b;
$custom-light: #6b86ad;
$custom-dark: #000000;

JSON

{
  "hex": "#1e588b",
  "rgb": {
    "r": 30,
    "g": 88,
    "b": 139
  },
  "hsl": {
    "h": 208.073,
    "s": 64.497,
    "l": 33.137
  },
  "oklch": {
    "l": 0.44932,
    "c": 0.10256,
    "h": 248.9
  },
  "luminance": 0.0912
}

Semantic roles & 50–950 ramp

primary

#1E588B

secondary

#BB7F4A

accent

#8F40E7

background

#F6F8FA

surface

#ECEFF4

border

#C7CACE

text

#080B10

muted

#7A7C7F

Preview Lab

Preview with #1E588B

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

Preview Lab → · Contrast checker → · Palette generator →