#1F5B8D#1F5B8D

#1F5B8D is a mid, moderate cyan. Relative luminance 0.097; OKLCH L 45.8% C 0.102 H 247.7°. Best body text is #FFFFFF at 7.14:1 contrast (WCAG AA passes).

Color values

HEX	#1F5B8D
RGB	rgb(31, 91, 141)
HSL	hsl(207, 64%, 34%)
HSV	hsv(207, 78%, 55%)
CMYK	cmyk(78%, 35.5%, 0%, 44.7%)
CIE-LAB	lab(37.29, -0.86, -33.12)
CIE-LCH	lch(37.29, 33.14, 268.51°)
OKLab	oklab(45.82% -0.0387 -0.0942)
OKLCH	oklch(45.82% 0.102 247.7)
XYZ	xyz(9.1120, 9.6955, 26.5853)
Luminance	0.0970 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1F5B8D #8D511F

analogous

#1F8D88 #1F5B8D #1F248D

triadic

#1F5B8D #8D1F5B #5B8D1F

tetradic

#1F5B8D #881F8D #8D511F #248D1F

square

#1F5B8D #881F8D #8D511F #248D1F

split-complementary

#1F5B8D #8D1F24 #8D881F

monochromatic

#091A29 #143B5B #1F5B8D #2A7BBF #4E99D8

Accessibility & contrast

On white

7.14

#1F5B8D on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.94

#1F5B8D on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1F5B8D

7.14:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1F5B8D	#FFFFFF	#000000	##FFFFFF
##1F5B8D	1.00	7.14	2.94	7.14
#FFFFFF	7.14	1.00	21.00	1.00
#000000	2.94	21.00	1.00	21.00
##FFFFFF	7.14	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#445D8F

Deuteranopia (green-blind)

#34538C

Tritanopia (blue-blind)

#00676D

Achromatopsia (no color)

#585858

Design tokens & code

CSS

--color: #1f5b8d;
/* rgb */ color: rgb(31, 91, 141);
/* oklch */ color: oklch(45.8% 0.102 247.7);

Tailwind

colors: {
  custom: {
    50: '#6b89ae',
    500: '#1f5b8d',
    950: '#000000',
  },
}

SCSS

$custom: #1f5b8d;
$custom-light: #6b89ae;
$custom-dark: #000000;

JSON

{
  "hex": "#1f5b8d",
  "rgb": {
    "r": 31,
    "g": 91,
    "b": 141
  },
  "hsl": {
    "h": 207.273,
    "s": 63.953,
    "l": 33.725
  },
  "oklch": {
    "l": 0.45823,
    "c": 0.10181,
    "h": 247.7
  },
  "luminance": 0.09697
}

Semantic roles & 50–950 ramp

primary

#1F5B8D

secondary

#BB7F4D

accent

#8C41E7

background

#F6F8FA

surface

#ECEFF4

border

#C7CACE

text

#080B10

muted

#7A7C7F

Preview Lab

Preview with #1F5B8D

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

Preview Lab → · Contrast checker → · Palette generator →