#1F598B#1F598B

#1F598B is a mid, moderate cyan. Relative luminance 0.093; OKLCH L 45.2% C 0.101 H 248.4°. Best body text is #FFFFFF at 7.34:1 contrast (WCAG AA passes).

Color values

HEX	#1F598B
RGB	rgb(31, 89, 139)
HSL	hsl(208, 64%, 33%)
HSV	hsv(208, 78%, 55%)
CMYK	cmyk(77.7%, 36%, 0%, 45.5%)
CIE-LAB	lab(36.55, -0.36, -33.07)
CIE-LCH	lch(36.55, 33.08, 269.37°)
OKLab	oklab(45.21% -0.0373 -0.0941)
OKLCH	oklch(45.21% 0.101 248.4)
XYZ	xyz(8.7959, 9.2991, 25.7524)
Luminance	0.0930 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1F598B #8B511F

analogous

#1F8B87 #1F598B #1F238B

triadic

#1F598B #8B1F59 #598B1F

tetradic

#1F598B #871F8B #8B511F #238B1F

square

#1F598B #871F8B #8B511F #238B1F

split-complementary

#1F598B #8B1F23 #8B871F

monochromatic

#091927 #143959 #1F598B #2A79BD #4D97D7

Accessibility & contrast

On white

7.34

#1F598B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.86

#1F598B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1F598B

7.34:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1F598B	#FFFFFF	#000000	##FFFFFF
##1F598B	1.00	7.34	2.86	7.34
#FFFFFF	7.34	1.00	21.00	1.00
#000000	2.86	21.00	1.00	21.00
##FFFFFF	7.34	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#425B8D

Deuteranopia (green-blind)

#32518A

Tritanopia (blue-blind)

#00656B

Achromatopsia (no color)

#565656

Design tokens & code

CSS

--color: #1f598b;
/* rgb */ color: rgb(31, 89, 139);
/* oklch */ color: oklch(45.2% 0.101 248.4);

Tailwind

colors: {
  custom: {
    50: '#6b87ad',
    500: '#1f598b',
    950: '#000000',
  },
}

SCSS

$custom: #1f598b;
$custom-light: #6b87ad;
$custom-dark: #000000;

JSON

{
  "hex": "#1f598b",
  "rgb": {
    "r": 31,
    "g": 89,
    "b": 139
  },
  "hsl": {
    "h": 207.778,
    "s": 63.529,
    "l": 33.333
  },
  "oklch": {
    "l": 0.45209,
    "c": 0.10119,
    "h": 248.4
  },
  "luminance": 0.093
}

Semantic roles & 50–950 ramp

primary

#1F598B

secondary

#BA7F4C

accent

#8E41E7

background

#F6F8FA

surface

#ECEFF4

border

#C7CACE

text

#080B10

muted

#7A7C7F

Preview Lab

Preview with #1F598B

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

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