#277FA4#277FA4

#277FA4 is a mid, moderate cyan. Relative luminance 0.183; OKLCH L 56.2% C 0.099 H 230.6°. Best body text is #000000 at 4.66:1 contrast (WCAG AA passes).

Color values

HEX	#277FA4
RGB	rgb(39, 127, 164)
HSL	hsl(198, 62%, 40%)
HSV	hsv(198, 76%, 64%)
CMYK	cmyk(76.2%, 22.6%, 0%, 35.7%)
CIE-LAB	lab(49.84, -12.87, -27.10)
CIE-LCH	lch(49.84, 30.00, 244.60°)
OKLab	oklab(56.21% -0.0625 -0.0762)
OKLCH	oklch(56.21% 0.099 230.6)
XYZ	xyz(15.1242, 18.2886, 37.8477)
Luminance	0.1829 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#277FA4 #A44C27

analogous

#27A48B #277FA4 #2741A4

triadic

#277FA4 #A4277F #7FA427

tetradic

#277FA4 #8B27A4 #A44C27 #41A427

square

#277FA4 #8B27A4 #A44C27 #41A427

split-complementary

#277FA4 #A42741 #A48B27

monochromatic

#0F3241 #1B5973 #277FA4 #38A3D0 #6ABADC

Accessibility & contrast

On white

4.51

#277FA4 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.66

#277FA4 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #277FA4

4.66:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##277FA4	#FFFFFF	#000000	##000000
##277FA4	1.00	4.51	4.66	4.66
#FFFFFF	4.51	1.00	21.00	21.00
#000000	4.66	21.00	1.00	1.00
##000000	4.66	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#6C7DA6

Deuteranopia (green-blind)

#5B71A3

Tritanopia (blue-blind)

#00898B

Achromatopsia (no color)

#777777

Design tokens & code

CSS

--color: #277fa4;
/* rgb */ color: rgb(39, 127, 164);
/* oklch */ color: oklch(56.2% 0.099 230.6);

Tailwind

colors: {
  custom: {
    50: '#74a4bf',
    500: '#277fa4',
    950: '#000000',
  },
}

SCSS

$custom: #277fa4;
$custom-light: #74a4bf;
$custom-dark: #000000;

JSON

{
  "hex": "#277fa4",
  "rgb": {
    "r": 39,
    "g": 127,
    "b": 164
  },
  "hsl": {
    "h": 197.76,
    "s": 61.576,
    "l": 39.804
  },
  "oklch": {
    "l": 0.56205,
    "c": 0.09854,
    "h": 230.6
  },
  "luminance": 0.1829
}

Semantic roles & 50–950 ramp

primary

#277FA4

secondary

#C28065

accent

#7343E5

background

#F7FAFB

surface

#EEF4F7

border

#C9CED0

text

#090F12

muted

#7B7F81

Preview Lab

Preview with #277FA4

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

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