#1F7AB4#1F7AB4

#1F7AB4 is a mid, vivid cyan. Relative luminance 0.175; OKLCH L 55.6% C 0.121 H 242.6°. Best body text is #FFFFFF at 4.67:1 contrast (WCAG AA passes).

Color values

HEX	#1F7AB4
RGB	rgb(31, 122, 180)
HSL	hsl(203, 71%, 41%)
HSV	hsv(203, 83%, 71%)
CMYK	cmyk(82.8%, 32.2%, 0%, 29.4%)
CIE-LAB	lab(48.89, -5.00, -37.89)
CIE-LCH	lch(48.89, 38.22, 262.48°)
OKLab	oklab(55.64% -0.0558 -0.1076)
OKLCH	oklch(55.64% 0.121 242.6)
XYZ	xyz(15.7596, 17.5037, 45.7191)
Luminance	0.1751 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1F7AB4 #B4591F

analogous

#1FB4A4 #1F7AB4 #1F2FB4

triadic

#1F7AB4 #B41F7A #7AB41F

tetradic

#1F7AB4 #A41FB4 #B4591F #2FB41F

square

#1F7AB4 #A41FB4 #B4591F #2FB41F

split-complementary

#1F7AB4 #B41F2F #B4A41F

monochromatic

#0D334C #165780 #1F7AB4 #349BDC #68B5E5

Accessibility & contrast

On white

4.67

#1F7AB4 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.50

#1F7AB4 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#FFFFFF on #1F7AB4

4.67:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1F7AB4	#FFFFFF	#000000	##FFFFFF
##1F7AB4	1.00	4.67	4.50	4.67
#FFFFFF	4.67	1.00	21.00	1.00
#000000	4.50	21.00	1.00	21.00
##FFFFFF	4.67	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#5F7CB7

Deuteranopia (green-blind)

#4A6EB3

Tritanopia (blue-blind)

#00888F

Achromatopsia (no color)

#747474

Design tokens & code

CSS

--color: #1f7ab4;
/* rgb */ color: rgb(31, 122, 180);
/* oklch */ color: oklch(55.6% 0.121 242.6);

Tailwind

colors: {
  custom: {
    50: '#74a0cb',
    500: '#1f7ab4',
    950: '#000000',
  },
}

SCSS

$custom: #1f7ab4;
$custom-light: #74a0cb;
$custom-dark: #000000;

JSON

{
  "hex": "#1f7ab4",
  "rgb": {
    "r": 31,
    "g": 122,
    "b": 180
  },
  "hsl": {
    "h": 203.356,
    "s": 70.616,
    "l": 41.373
  },
  "oklch": {
    "l": 0.55642,
    "c": 0.1212,
    "h": 242.6
  },
  "luminance": 0.17506
}

Semantic roles & 50–950 ramp

primary

#1F7AB4

secondary

#CB8C64

accent

#803AED

background

#F7F9FC

surface

#EEF2F8

border

#C9CCD1

text

#0A0E13

muted

#7C7E82

Preview Lab

Preview with #1F7AB4

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

Preview Lab → · Contrast checker → · Palette generator →