#1F5B8E#1F5B8E

#1F5B8E is a mid, moderate cyan. Relative luminance 0.097; OKLCH L 45.9% C 0.103 H 248.1°. Best body text is #FFFFFF at 7.13:1 contrast (WCAG AA passes).

Color values

HEX	#1F5B8E
RGB	rgb(31, 91, 142)
HSL	hsl(208, 64%, 34%)
HSV	hsv(208, 78%, 56%)
CMYK	cmyk(78.2%, 35.9%, 0%, 44.3%)
CIE-LAB	lab(37.34, -0.47, -33.64)
CIE-LCH	lch(37.34, 33.65, 269.19°)
OKLab	oklab(45.88% -0.0384 -0.0957)
OKLCH	oklch(45.88% 0.103 248.1)
XYZ	xyz(9.1868, 9.7254, 26.9790)
Luminance	0.0973 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1F5B8E #8E521F

analogous

#1F8E8A #1F5B8E #1F238E

triadic

#1F5B8E #8E1F5B #5B8E1F

tetradic

#1F5B8E #8A1F8E #8E521F #238E1F

square

#1F5B8E #8A1F8E #8E521F #238E1F

split-complementary

#1F5B8E #8E1F23 #8E8A1F

monochromatic

#091B2A #143B5C #1F5B8E #2A7BC0 #4F99D9

Accessibility & contrast

On white

7.13

#1F5B8E on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.95

#1F5B8E on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1F5B8E

7.13:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1F5B8E	#FFFFFF	#000000	##FFFFFF
##1F5B8E	1.00	7.13	2.95	7.13
#FFFFFF	7.13	1.00	21.00	1.00
#000000	2.95	21.00	1.00	21.00
##FFFFFF	7.13	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#435D90

Deuteranopia (green-blind)

#33538D

Tritanopia (blue-blind)

#00676E

Achromatopsia (no color)

#585858

Design tokens & code

CSS

--color: #1f5b8e;
/* rgb */ color: rgb(31, 91, 142);
/* oklch */ color: oklch(45.9% 0.103 248.1);

Tailwind

colors: {
  custom: {
    50: '#6c89af',
    500: '#1f5b8e',
    950: '#000000',
  },
}

SCSS

$custom: #1f5b8e;
$custom-light: #6c89af;
$custom-dark: #000000;

JSON

{
  "hex": "#1f5b8e",
  "rgb": {
    "r": 31,
    "g": 91,
    "b": 142
  },
  "hsl": {
    "h": 207.568,
    "s": 64.162,
    "l": 33.922
  },
  "oklch": {
    "l": 0.45884,
    "c": 0.10311,
    "h": 248.1
  },
  "luminance": 0.09726
}

Semantic roles & 50–950 ramp

primary

#1F5B8E

secondary

#BB804D

accent

#8D41E7

background

#F6F8FA

surface

#ECEFF4

border

#C7CACE

text

#080B10

muted

#7A7C7F

Preview Lab

Preview with #1F5B8E

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

Preview Lab → · Contrast checker → · Palette generator →