#4784BD
Closest named color: Cool Blue (#4984B8). oklch(59.8% 0.108 248.6), rgb(71, 132, 189).
Aa
Black text reads best on this color (5.30:1).
About this color
#4784BD is a medium-dark, moderately saturated blue. In OKLCH its lightness is 60%, its chroma 0.108 and its hue 249°. Its hue sits on the cool side of the wheel. The nearest named color is Cool Blue (#4984B8), ΔE 0.008 away. Black text reads best on it, at 5.30:1.
| Hue family | Blues |
| Lightness | medium-dark (60%) |
| Chroma | moderately saturated (0.108) |
| Temperature | cool |
| Nearest name | Cool Blue (#4984B8) |
| Black text | 5.30:1 |
| White text | 3.95:1 |
Values
| HEX | #4784BD |
| RGB | rgb(71, 132, 189) |
| HSL | hsl(209, 47%, 51%) |
| OKLCH | oklch(59.8% 0.108 248.6) |
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 #4784BD | 3.95:1 | AA large text | Lc -72.3 | Content text, not long reading |
| Black text on #4784BD | 5.30:1 | AA | Lc 37.3 | Non-text elements, placeholder text |
| #4784BD text on white | 3.95:1 | AA large text | Lc 66.8 | Content text, not long reading |
| #4784BD text on black | 5.30:1 | AA | Lc -34.9 | 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
#E2EBF4
oklch(93.6% 0.016 248)
-
Step 200
200
#CBDBEC
oklch(88.5% 0.029 249.8)
-
Step 300
300
#A7C4E2
oklch(80.9% 0.053 249.4)
-
Step 400
400
#76A5D3
oklch(70.6% 0.085 248.6)
-
Step 500
500 (this color)
#4784BD
oklch(59.8% 0.108 248.6)
-
Step 600
600
#3377B5
oklch(55.5% 0.118 249)
-
Step 700
700
#25649B
oklch(49% 0.109 248.5)
-
Step 800
800
#21527E
oklch(42.7% 0.09 248.7)
-
Step 900
900
#204465
oklch(37.7% 0.07 248.4)
-
Step 950
950
#14283B
oklch(27% 0.044 248.6)
#4784BD 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) | #6B86BF | 0.040 |
| Deuteranopia (no green cones) | #5B7BBC | 0.030 |
| Tritanopia (no blue cones) | #009198 | 0.085 |
| Achromatopsia (no color) | #808080 | 0.108 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #4784BD
#4784BD
oklch(59.8% 0.108 248.6)
- #A9722E
#A9722E
oklch(59.7% 0.108 68.5)
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 #4784BD, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Cool Blue #4984B8 ΔE 0.008
- Steel Blue #4682B4 ΔE 0.014
- Off Blue #5684AE ΔE 0.026
- Dusty Blue #5A86AD ΔE 0.032
- Water Blue #0E87CC ΔE 0.035
- Windows Blue #3778BF ΔE 0.040
- Blue NCS #118AB2 ΔE 0.040
- Faded Blue #658CBB ΔE 0.042
Use #4784BD 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.