#4E91BC#4E91BC

#4E91BC is a light, moderate cyan. Relative luminance 0.255; OKLCH L 63.0% C 0.094 H 238.8°. Best body text is #000000 at 6.10:1 contrast (WCAG AA passes).

Color values

HEX	#4E91BC
RGB	rgb(78, 145, 188)
HSL	hsl(203, 45%, 52%)
HSV	hsv(203, 59%, 74%)
CMYK	cmyk(58.5%, 22.9%, 0%, 26.3%)
CIE-LAB	lab(57.56, -8.49, -28.81)
CIE-LCH	lch(57.56, 30.04, 253.58°)
OKLab	oklab(63.03% -0.0488 -0.0806)
OKLCH	oklch(63.03% 0.094 238.8)
XYZ	xyz(22.3410, 25.4993, 51.3117)
Luminance	0.2550 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#4E91BC #BC794E

analogous

#4EBCB0 #4E91BC #4E5ABC

triadic

#4E91BC #BC4E91 #91BC4E

tetradic

#4E91BC #B04EBC #BC794E #5ABC4E

square

#4E91BC #B04EBC #BC794E #5ABC4E

split-complementary

#4E91BC #BC4E5A #BCB04E

monochromatic

#274F68 #387095 #4E91BC #7AADCD #A7C8DE

Accessibility & contrast

On white

3.44

#4E91BC on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

6.10

#4E91BC on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #4E91BC

6.10:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4E91BC	#FFFFFF	#000000	##000000
##4E91BC	1.00	3.44	6.10	6.10
#FFFFFF	3.44	1.00	21.00	21.00
#000000	6.10	21.00	1.00	1.00
##000000	6.10	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#7D91BE

Deuteranopia (green-blind)

#6E85BB

Tritanopia (blue-blind)

#009C9F

Achromatopsia (no color)

#8A8A8A

Design tokens & code

CSS

--color: #4e91bc;
/* rgb */ color: rgb(78, 145, 188);
/* oklch */ color: oklch(63.0% 0.094 238.8);

Tailwind

colors: {
  custom: {
    50: '#88b1d0',
    500: '#4e91bc',
    950: '#000000',
  },
}

SCSS

$custom: #4e91bc;
$custom-light: #88b1d0;
$custom-dark: #000000;

JSON

{
  "hex": "#4e91bc",
  "rgb": {
    "r": 78,
    "g": 145,
    "b": 188
  },
  "hsl": {
    "h": 203.455,
    "s": 45.082,
    "l": 52.157
  },
  "oklch": {
    "l": 0.63031,
    "c": 0.09425,
    "h": 238.8
  },
  "luminance": 0.25501
}

Semantic roles & 50–950 ramp

primary

#4E91BC

secondary

#CBAE9B

accent

#8653D5

background

#F8FAFC

surface

#F0F5F9

border

#CBCFD2

text

#0C1014

muted

#7D7F82

Preview Lab

Preview with #4E91BC

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

Preview Lab → · Contrast checker → · Palette generator →