#4787DB
Closest named color: Dark Sky Blue (#448EE4). oklch(62.1% 0.144 256.1), rgb(71, 135, 219).
Aa
Black text reads best on this color (5.75:1).
About this color
#4787DB is a medium-light, vivid blue. In OKLCH its lightness is 62%, its chroma 0.144 and its hue 256°. Its hue sits on the cool side of the wheel. The nearest named color is Dark Sky Blue (#448EE4), ΔE 0.021 away. Black text reads best on it, at 5.75:1.
| Hue family | Blues |
| Lightness | medium-light (62%) |
| Chroma | vivid (0.144) |
| Temperature | cool |
| Nearest name | Dark Sky Blue (#448EE4) |
| Black text | 5.75:1 |
| White text | 3.64:1 |
Values
| HEX | #4787DB |
| RGB | rgb(71, 135, 219) |
| HSL | hsl(214, 67%, 57%) |
| OKLCH | oklch(62.1% 0.144 256.1) |
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 #4787DB | 3.64:1 | AA large text | Lc -69.3 | Content text, not long reading |
| Black text on #4787DB | 5.75:1 | AA | Lc 40.3 | Non-text elements, placeholder text |
| #4787DB text on white | 3.64:1 | AA large text | Lc 63.8 | Content text, not long reading |
| #4787DB text on black | 5.75:1 | AA | Lc -37.9 | 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
#F1F6FC
oklch(97.1% 0.01 252.8)
-
Step 100
100
#E1EBF8
oklch(93.6% 0.021 254.9)
-
Step 200
200
#C9DBF3
oklch(88.5% 0.038 255.6)
-
Step 300
300
#A3C3EE
oklch(80.9% 0.07 255.9)
-
Step 400
400
#71A3E6
oklch(70.8% 0.112 256)
-
Step 500
500 (this color)
#4787DB
oklch(62.1% 0.144 256.1)
-
Step 600
600
#2B72CC
oklch(55.6% 0.156 256.2)
-
Step 700
700
#1D5FB1
oklch(49.1% 0.146 256.3)
-
Step 800
800
#1A4E8F
oklch(42.7% 0.121 256)
-
Step 900
900
#1C4272
oklch(37.8% 0.093 255.6)
-
Step 950
950
#112743
oklch(27.1% 0.059 255.4)
#4787DB 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) | #618DDE | 0.033 |
| Deuteranopia (no green cones) | #4B80D9 | 0.018 |
| Tritanopia (no blue cones) | #009AA6 | 0.114 |
| Achromatopsia (no color) | #868686 | 0.144 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #4787DB
#4787DB
oklch(62.1% 0.144 256.1)
- #B37A00
#B37A00
oklch(62.2% 0.131 76.2)
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 #4787DB, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Sky Blue #448EE4 ΔE 0.021
- Soft Blue #6488EA ΔE 0.038
- Water Blue #0E87CC ΔE 0.040
- Chefchaouen Blue #4895EF ΔE 0.044
- Cool Blue #4984B8 ΔE 0.053
- Cornflower Blue #6495ED ΔE 0.055
- Dodger Blue #1E90FF ΔE 0.056
- Windows Blue #3778BF ΔE 0.059
Use #4787DB 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.