#4880BB
Closest named color: Cool Blue (#4984B8). oklch(58.8% 0.109 251.3), rgb(72, 128, 187).
Aa
Black text reads best on this color (5.08:1).
About this color
#4880BB is a medium-dark, moderately saturated blue. In OKLCH its lightness is 59%, its chroma 0.109 and its hue 251°. Its hue sits on the cool side of the wheel. The nearest named color is Cool Blue (#4984B8), ΔE 0.014 away. Black text reads best on it, at 5.08:1.
| Hue family | Blues |
| Lightness | medium-dark (59%) |
| Chroma | moderately saturated (0.109) |
| Temperature | cool |
| Nearest name | Cool Blue (#4984B8) |
| Black text | 5.08:1 |
| White text | 4.13:1 |
Values
| HEX | #4880BB |
| RGB | rgb(72, 128, 187) |
| HSL | hsl(211, 46%, 51%) |
| OKLCH | oklch(58.8% 0.109 251.3) |
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 #4880BB | 4.13:1 | AA large text | Lc -73.7 | Content text, not long reading |
| Black text on #4880BB | 5.08:1 | AA | Lc 35.9 | Non-text elements, placeholder text |
| #4880BB text on white | 4.13:1 | AA large text | Lc 68.2 | Content text, not long reading |
| #4880BB text on black | 5.08:1 | AA | Lc -33.4 | 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 600.
-
Step 50
50
#F2F6FA
oklch(97.1% 0.007 247.9)
-
Step 100
100
#E3EBF3
oklch(93.6% 0.014 248)
-
Step 200
200
#CCDBEB
oklch(88.5% 0.027 249.9)
-
Step 300
300
#AAC3E0
oklch(80.8% 0.049 252.3)
-
Step 400
400
#7CA4D0
oklch(70.6% 0.078 251.3)
-
Step 500
500
#5A8DC4
oklch(63.1% 0.1 251.4)
-
Step 600
600 (this color)
#4880BB
oklch(58.8% 0.109 251.3)
-
Step 700
700
#306398
oklch(49% 0.102 251.4)
-
Step 800
800
#29517B
oklch(42.7% 0.084 251.4)
-
Step 900
900
#264363
oklch(37.6% 0.065 252.1)
-
Step 950
950
#17283A
oklch(27.1% 0.041 250.8)
#4880BB 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) | #6783BE | 0.037 |
| Deuteranopia (no green cones) | #5778BA | 0.025 |
| Tritanopia (no blue cones) | #008E95 | 0.089 |
| Achromatopsia (no color) | #7D7D7D | 0.109 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #4880BB
#4880BB
oklch(58.8% 0.109 251.3)
- #A57028
#A57028
oklch(58.8% 0.109 70.5)
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 #4880BB, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Cool Blue #4984B8 ΔE 0.014
- Steel Blue #4682B4 ΔE 0.014
- Off Blue #5684AE ΔE 0.029
- Windows Blue #3778BF ΔE 0.031
- Dusty Blue #5A86AD ΔE 0.037
- Water Blue #0E87CC ΔE 0.038
- Blue NCS #118AB2 ΔE 0.045
- Nice Blue #107AB0 ΔE 0.045
Use #4880BB 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.