#1E577B#1E577B

#1E577B is a dark, moderate cyan. Relative luminance 0.085; OKLCH L 43.7% C 0.083 H 240.5°. Best body text is #FFFFFF at 7.77:1 contrast (WCAG AA passes).

Color values

HEX	#1E577B
RGB	rgb(30, 87, 123)
HSL	hsl(203, 61%, 30%)
HSV	hsv(203, 76%, 48%)
CMYK	cmyk(75.6%, 29.3%, 0%, 51.8%)
CIE-LAB	lab(35.05, -5.40, -25.65)
CIE-LCH	lch(35.05, 26.21, 258.10°)
OKLab	oklab(43.74% -0.041 -0.0724)
OKLCH	oklch(43.74% 0.083 240.5)
XYZ	xyz(7.5174, 8.5216, 19.9837)
Luminance	0.0852 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1E577B #7B421E

analogous

#1E7B71 #1E577B #1E287B

triadic

#1E577B #7B1E57 #577B1E

tetradic

#1E577B #711E7B #7B421E #287B1E

square

#1E577B #711E7B #7B421E #287B1E

split-complementary

#1E577B #7B1E28 #7B711E

monochromatic

#061119 #12344A #1E577B #2A7AAC #429AD1

Accessibility & contrast

On white

7.77

#1E577B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.70

#1E577B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1E577B

7.77:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1E577B	#FFFFFF	#000000	##FFFFFF
##1E577B	1.00	7.77	2.70	7.77
#FFFFFF	7.77	1.00	21.00	1.00
#000000	2.70	21.00	1.00	21.00
##FFFFFF	7.77	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#46577D

Deuteranopia (green-blind)

#3A4E7A

Tritanopia (blue-blind)

#006064

Achromatopsia (no color)

#525252

Design tokens & code

CSS

--color: #1e577b;
/* rgb */ color: rgb(30, 87, 123);
/* oklch */ color: oklch(43.7% 0.083 240.5);

Tailwind

colors: {
  custom: {
    50: '#6786a1',
    500: '#1e577b',
    950: '#000000',
  },
}

SCSS

$custom: #1e577b;
$custom-light: #6786a1;
$custom-dark: #000000;

JSON

{
  "hex": "#1e577b",
  "rgb": {
    "r": 30,
    "g": 87,
    "b": 123
  },
  "hsl": {
    "h": 203.226,
    "s": 60.784,
    "l": 30
  },
  "oklch": {
    "l": 0.43735,
    "c": 0.08325,
    "h": 240.5
  },
  "luminance": 0.08522
}

Semantic roles & 50–950 ramp

primary

#1E577B

secondary

#AE6F46

accent

#8244E4

background

#F6F8F9

surface

#EBEFF2

border

#C6CACC

text

#070B0F

muted

#7A7C7E

Preview Lab

Preview with #1E577B

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

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