#1F5F9D#1F5F9D

#1F5F9D is a mid, moderate cyan. Relative luminance 0.109; OKLCH L 47.8% C 0.119 H 251.3°. Best body text is #FFFFFF at 6.60:1 contrast (WCAG AA passes).

Color values

HEX	#1F5F9D
RGB	rgb(31, 95, 157)
HSL	hsl(210, 67%, 37%)
HSV	hsv(210, 80%, 62%)
CMYK	cmyk(80.3%, 39.5%, 0%, 38.4%)
CIE-LAB	lab(39.43, 2.83, -39.36)
CIE-LCH	lch(39.43, 39.46, 274.11°)
OKLab	oklab(47.79% -0.038 -0.1124)
OKLCH	oklch(47.79% 0.119 251.3)
XYZ	xyz(10.7408, 10.9088, 33.4313)
Luminance	0.1091 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1F5F9D #9D5D1F

analogous

#1F9D9C #1F5F9D #1F209D

triadic

#1F5F9D #9D1F5F #5F9D1F

tetradic

#1F5F9D #9C1F9D #9D5D1F #209D1F

square

#1F5F9D #9C1F9D #9D5D1F #209D1F

split-complementary

#1F5F9D #9D1F20 #9D9C1F

monochromatic

#0B2137 #15406A #1F5F9D #297ED0 #589CDE

Accessibility & contrast

On white

6.60

#1F5F9D on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.18

#1F5F9D on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #1F5F9D

6.60:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1F5F9D	#FFFFFF	#000000	##FFFFFF
##1F5F9D	1.00	6.60	3.18	6.60
#FFFFFF	6.60	1.00	21.00	1.00
#000000	3.18	21.00	1.00	21.00
##FFFFFF	6.60	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#4163A0

Deuteranopia (green-blind)

#2D589C

Tritanopia (blue-blind)

#006E76

Achromatopsia (no color)

#5D5D5D

Design tokens & code

CSS

--color: #1f5f9d;
/* rgb */ color: rgb(31, 95, 157);
/* oklch */ color: oklch(47.8% 0.119 251.3);

Tailwind

colors: {
  custom: {
    50: '#6f8cba',
    500: '#1f5f9d',
    950: '#000000',
  },
}

SCSS

$custom: #1f5f9d;
$custom-light: #6f8cba;
$custom-dark: #000000;

JSON

{
  "hex": "#1f5f9d",
  "rgb": {
    "r": 31,
    "g": 95,
    "b": 157
  },
  "hsl": {
    "h": 209.524,
    "s": 67.021,
    "l": 36.863
  },
  "oklch": {
    "l": 0.47792,
    "c": 0.11864,
    "h": 251.3
  },
  "luminance": 0.1091
}

Semantic roles & 50–950 ramp

primary

#1F5F9D

secondary

#C28B56

accent

#933EEA

background

#F7F8FB

surface

#EDF0F6

border

#C8CBD0

text

#080C11

muted

#7B7D80

Preview Lab

Preview with #1F5F9D

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

Preview Lab → · Contrast checker → · Palette generator →