#1F5B87#1F5B87

#1F5B87 is a mid, moderate cyan. Relative luminance 0.095; OKLCH L 45.5% C 0.094 H 244.5°. Best body text is #FFFFFF at 7.23:1 contrast (WCAG AA passes).

Color values

HEX	#1F5B87
RGB	rgb(31, 91, 135)
HSL	hsl(205, 63%, 33%)
HSV	hsv(205, 77%, 53%)
CMYK	cmyk(77%, 32.6%, 0%, 47.1%)
CIE-LAB	lab(36.97, -3.18, -29.98)
CIE-LCH	lch(36.97, 30.15, 263.95°)
OKLab	oklab(45.47% -0.0405 -0.085)
OKLCH	oklch(45.47% 0.094 244.5)
XYZ	xyz(8.6776, 9.5217, 24.2975)
Luminance	0.0952 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1F5B87 #874B1F

analogous

#1F877F #1F5B87 #1F2787

triadic

#1F5B87 #871F5B #5B871F

tetradic

#1F5B87 #7F1F87 #874B1F #27871F

square

#1F5B87 #7F1F87 #874B1F #27871F

split-complementary

#1F5B87 #871F27 #877F1F

monochromatic

#081823 #143955 #1F5B87 #2A7DB9 #4B9BD6

Accessibility & contrast

On white

7.23

#1F5B87 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.90

#1F5B87 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1F5B87

7.23:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1F5B87	#FFFFFF	#000000	##FFFFFF
##1F5B87	1.00	7.23	2.90	7.23
#FFFFFF	7.23	1.00	21.00	1.00
#000000	2.90	21.00	1.00	21.00
##FFFFFF	7.23	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#475C89

Deuteranopia (green-blind)

#385386

Tritanopia (blue-blind)

#00666B

Achromatopsia (no color)

#575757

Design tokens & code

CSS

--color: #1f5b87;
/* rgb */ color: rgb(31, 91, 135);
/* oklch */ color: oklch(45.5% 0.094 244.5);

Tailwind

colors: {
  custom: {
    50: '#6a89aa',
    500: '#1f5b87',
    950: '#000000',
  },
}

SCSS

$custom: #1f5b87;
$custom-light: #6a89aa;
$custom-dark: #000000;

JSON

{
  "hex": "#1f5b87",
  "rgb": {
    "r": 31,
    "g": 91,
    "b": 135
  },
  "hsl": {
    "h": 205.385,
    "s": 62.651,
    "l": 32.549
  },
  "oklch": {
    "l": 0.45466,
    "c": 0.09417,
    "h": 244.5
  },
  "luminance": 0.09523
}

Semantic roles & 50–950 ramp

primary

#1F5B87

secondary

#B8784A

accent

#8742E6

background

#F6F8FA

surface

#ECF0F4

border

#C7CBCE

text

#070B10

muted

#7A7C7F

Preview Lab

Preview with #1F5B87

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

Preview Lab → · Contrast checker → · Palette generator →