#4C82BB
Closest named color: Cool Blue (#4984B8). oklch(59.4% 0.105 251.2), rgb(76, 130, 187).
Aa
Black text reads best on this color (5.21:1).
About this color
#4C82BB is a medium-dark, moderately saturated blue. In OKLCH its lightness is 59%, its chroma 0.105 and its hue 251°. Its hue sits on the cool side of the wheel. The nearest named color is Cool Blue (#4984B8), ΔE 0.009 away. Black text reads best on it, at 5.21:1.
| Hue family | Blues |
| Lightness | medium-dark (59%) |
| Chroma | moderately saturated (0.105) |
| Temperature | cool |
| Nearest name | Cool Blue (#4984B8) |
| Black text | 5.21:1 |
| White text | 4.02:1 |
Values
| HEX | #4C82BB |
| RGB | rgb(76, 130, 187) |
| HSL | hsl(211, 45%, 52%) |
| OKLCH | oklch(59.4% 0.105 251.2) |
Contrast
WCAG 2 contrast ratios are the conformance target: AA needs 4.5:1 for body text and 3:1 for large text, AAA needs 7:1. APCA Lc values are supplementary guidance from the WCAG 3 drafts.
| Pair | WCAG 2 | Result | APCA | APCA guidance |
|---|---|---|---|---|
| White text on #4C82BB | 4.02:1 | AA large text | Lc -72.8 | Content text, not long reading |
| Black text on #4C82BB | 5.21:1 | AA | Lc 36.7 | Non-text elements, placeholder text |
| #4C82BB text on white | 4.02:1 | AA large text | Lc 67.3 | Content text, not long reading |
| #4C82BB text on black | 5.21:1 | AA | Lc -34.3 | Non-text elements, placeholder text |
Tints and shades
A 50–950 scale built in OKLCH: the hue is held, lightness follows a Tailwind v4-like curve, and every step is kept inside the sRGB gamut. This color sits at step 500.
-
Step 50
50
#F2F6FA
oklch(97.1% 0.007 247.9)
-
Step 100
100
#E3EBF4
oklch(93.7% 0.015 251.2)
-
Step 200
200
#CCDBEC
oklch(88.5% 0.029 251.5)
-
Step 300
300
#A9C4E1
oklch(81% 0.051 250.3)
-
Step 400
400
#7AA4D3
oklch(70.6% 0.083 251.8)
-
Step 500
500 (this color)
#4C82BB
oklch(59.4% 0.105 251.2)
-
Step 600
600
#3B76B4
oklch(55.6% 0.115 251.6)
-
Step 700
700
#2D639B
oklch(49.1% 0.107 251.6)
-
Step 800
800
#26517D
oklch(42.6% 0.088 251.1)
-
Step 900
900
#244465
oklch(37.8% 0.068 250.7)
-
Step 950
950
#16283B
oklch(27.1% 0.043 250.9)
#4C82BB with color blindness
Simulated with the Machado et al. (2009) model. ΔE is how far the color moves: below about 0.02 you would not notice a change.
| Vision | Seen as | Shift (ΔE) |
|---|---|---|
| Protanopia (no red cones) | #6A85BD | 0.036 |
| Deuteranopia (no green cones) | #5B7ABA | 0.025 |
| Tritanopia (no blue cones) | #008F96 | 0.087 |
| Achromatopsia (no color) | #7F7F7F | 0.105 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #4C82BB
#4C82BB
oklch(59.4% 0.105 251.2)
- #A5732F
#A5732F
oklch(59.4% 0.104 71.4)
Analogous
Neighbouring hues, 30° either side.
Split complementary
The two hues beside the complement (150° and 210°).
Triadic
Three hues spaced 120° apart.
Palettes with this color
Curated palettes that contain a color within ΔE 0.04 (OKLab) of #4C82BB, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Cool Blue #4984B8 ΔE 0.009
- Steel Blue #4682B4 ΔE 0.013
- Off Blue #5684AE ΔE 0.024
- Dusty Blue #5A86AD ΔE 0.031
- Windows Blue #3778BF ΔE 0.038
- Water Blue #0E87CC ΔE 0.040
- Faded Blue #658CBB ΔE 0.042
- Blue NCS #118AB2 ΔE 0.044
Use #4C82BB in your product
Turn it into light and dark UI roles checked for contrast, then export to Tailwind v4, shadcn/ui, CSS or design tokens.