#1F5D8B#1F5D8B

#1F5D8B is a mid, moderate cyan. Relative luminance 0.100; OKLCH L 46.2% C 0.097 H 244.9°. Best body text is #FFFFFF at 7.01:1 contrast (WCAG AA passes).

Color values

HEX	#1F5D8B
RGB	rgb(31, 93, 139)
HSL	hsl(206, 64%, 33%)
HSV	hsv(206, 78%, 55%)
CMYK	cmyk(77.7%, 33.1%, 0%, 45.5%)
CIE-LAB	lab(37.81, -2.89, -31.09)
CIE-LCH	lch(37.81, 31.22, 264.68°)
OKLab	oklab(46.2% -0.0413 -0.0882)
OKLCH	oklch(46.2% 0.097 244.9)
XYZ	xyz(9.1378, 9.9830, 25.8664)
Luminance	0.0998 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1F5D8B #8B4D1F

analogous

#1F8B83 #1F5D8B #1F278B

triadic

#1F5D8B #8B1F5D #5D8B1F

tetradic

#1F5D8B #831F8B #8B4D1F #278B1F

square

#1F5D8B #831F8B #8B4D1F #278B1F

split-complementary

#1F5D8B #8B1F27 #8B831F

monochromatic

#091A27 #143C59 #1F5D8B #2A7EBD #4D9CD7

Accessibility & contrast

On white

7.01

#1F5D8B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

3.00

#1F5D8B on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #1F5D8B

7.01:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1F5D8B	#FFFFFF	#000000	##FFFFFF
##1F5D8B	1.00	7.01	3.00	7.01
#FFFFFF	7.01	1.00	21.00	1.00
#000000	3.00	21.00	1.00	21.00
##FFFFFF	7.01	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#485F8D

Deuteranopia (green-blind)

#39548A

Tritanopia (blue-blind)

#00686D

Achromatopsia (no color)

#595959

Design tokens & code

CSS

--color: #1f5d8b;
/* rgb */ color: rgb(31, 93, 139);
/* oklch */ color: oklch(46.2% 0.097 244.9);

Tailwind

colors: {
  custom: {
    50: '#6b8aad',
    500: '#1f5d8b',
    950: '#000000',
  },
}

SCSS

$custom: #1f5d8b;
$custom-light: #6b8aad;
$custom-dark: #000000;

JSON

{
  "hex": "#1f5d8b",
  "rgb": {
    "r": 31,
    "g": 93,
    "b": 139
  },
  "hsl": {
    "h": 205.556,
    "s": 63.529,
    "l": 33.333
  },
  "oklch": {
    "l": 0.46199,
    "c": 0.09737,
    "h": 244.9
  },
  "luminance": 0.09984
}

Semantic roles & 50–950 ramp

primary

#1F5D8B

secondary

#BA7B4C

accent

#8841E7

background

#F6F8FA

surface

#ECF0F4

border

#C7CBCE

text

#080B10

muted

#7A7C7F

Preview Lab

Preview with #1F5D8B

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

Preview Lab → · Contrast checker → · Palette generator →