#4178B2#4178B2

#4178B2 is a mid, moderate cyan. Relative luminance 0.178; OKLCH L 56.2% C 0.108 H 251.4°. Best body text is #FFFFFF at 4.61:1 contrast (WCAG AA passes).

Color values

HEX	#4178B2
RGB	rgb(65, 120, 178)
HSL	hsl(211, 47%, 48%)
HSV	hsv(211, 63%, 70%)
CMYK	cmyk(63.5%, 32.6%, 0%, 30.2%)
CIE-LAB	lab(49.22, 0.22, -36.15)
CIE-LCH	lch(49.22, 36.15, 270.35°)
OKLab	oklab(56.16% -0.0344 -0.1022)
OKLCH	oklch(56.16% 0.108 251.4)
XYZ	xyz(16.9294, 17.7695, 44.6485)
Luminance	0.1777 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#4178B2 #B27B41

analogous

#41B1B2 #4178B2 #4241B2

triadic

#4178B2 #B24178 #78B241

tetradic

#4178B2 #B241B1 #B27B41 #41B242

square

#4178B2 #B241B1 #B27B41 #41B242

split-complementary

#4178B2 #B24241 #B1B241

monochromatic

#203C58 #315A85 #4178B2 #6897C8 #95B6D8

Accessibility & contrast

On white

4.61

#4178B2 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.55

#4178B2 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#FFFFFF on #4178B2

4.61:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4178B2	#FFFFFF	#000000	##FFFFFF
##4178B2	1.00	4.61	4.55	4.61
#FFFFFF	4.61	1.00	21.00	1.00
#000000	4.55	21.00	1.00	21.00
##FFFFFF	4.61	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#5F7BB4

Deuteranopia (green-blind)

#5070B1

Tritanopia (blue-blind)

#00858D

Achromatopsia (no color)

#757575

Design tokens & code

CSS

--color: #4178b2;
/* rgb */ color: rgb(65, 120, 178);
/* oklch */ color: oklch(56.2% 0.108 251.4);

Tailwind

colors: {
  custom: {
    50: '#809ec9',
    500: '#4178b2',
    950: '#000000',
  },
}

SCSS

$custom: #4178b2;
$custom-light: #809ec9;
$custom-dark: #000000;

JSON

{
  "hex": "#4178b2",
  "rgb": {
    "r": 65,
    "g": 120,
    "b": 178
  },
  "hsl": {
    "h": 210.796,
    "s": 46.502,
    "l": 47.647
  },
  "oklch": {
    "l": 0.56155,
    "c": 0.10783,
    "h": 251.4
  },
  "luminance": 0.17771
}

Semantic roles & 50–950 ramp

primary

#4178B2

secondary

#C4A88B

accent

#9652D6

background

#F8F9FC

surface

#EFF2F8

border

#CACCD1

text

#0B0E13

muted

#7C7E82

Preview Lab

Preview with #4178B2

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

Preview Lab → · Contrast checker → · Palette generator →