#4D7DDD
Closest named color: Dark Sky Blue (#448EE4). oklch(60.3% 0.155 262.7), rgb(77, 125, 221).
Aa
Black text reads best on this color (5.29:1).
About this color
#4D7DDD is a medium-dark, vivid blue. In OKLCH its lightness is 60%, its chroma 0.155 and its hue 263°. Its hue sits on the cool side of the wheel. The nearest named color is Dark Sky Blue (#448EE4), ΔE 0.044 away. Black text reads best on it, at 5.29:1.
| Hue family | Blues |
| Lightness | medium-dark (60%) |
| Chroma | vivid (0.155) |
| Temperature | cool |
| Nearest name | Dark Sky Blue (#448EE4) |
| Black text | 5.29:1 |
| White text | 3.96:1 |
Values
| HEX | #4D7DDD |
| RGB | rgb(77, 125, 221) |
| HSL | hsl(220, 68%, 58%) |
| OKLCH | oklch(60.3% 0.155 262.7) |
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 #4D7DDD | 3.96:1 | AA large text | Lc -72.2 | Content text, not long reading |
| Black text on #4D7DDD | 5.29:1 | AA | Lc 37.3 | Non-text elements, placeholder text |
| #4D7DDD text on white | 3.96:1 | AA large text | Lc 66.7 | Content text, not long reading |
| #4D7DDD text on black | 5.29:1 | 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
#F2F6FD
oklch(97.2% 0.01 261.8)
-
Step 100
100
#E2EAF9
oklch(93.5% 0.022 263.2)
-
Step 200
200
#CADAF6
oklch(88.5% 0.042 261.7)
-
Step 300
300
#A7C1F3
oklch(80.9% 0.077 263.3)
-
Step 400
400
#77A0EC
oklch(70.8% 0.121 262.1)
-
Step 500
500 (this color)
#4D7DDD
oklch(60.3% 0.155 262.7)
-
Step 600
600
#3A6DD5
oklch(55.6% 0.169 262.6)
-
Step 700
700
#2D5AB8
oklch(49% 0.157 262.8)
-
Step 800
800
#264A95
oklch(42.6% 0.13 262.8)
-
Step 900
900
#233F77
oklch(37.7% 0.102 262.6)
-
Step 950
950
#152545
oklch(26.9% 0.064 262.8)
#4D7DDD 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) | #4F87E1 | 0.027 |
| Deuteranopia (no green cones) | #387ADB | 0.022 |
| Tritanopia (no blue cones) | #0093A2 | 0.128 |
| Achromatopsia (no color) | #808080 | 0.155 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #4D7DDD
#4D7DDD
oklch(60.3% 0.155 262.7)
- #A57900
#A57900
oklch(60.4% 0.124 83)
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 #4D7DDD, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Sky Blue #448EE4 ΔE 0.044
- Soft Blue #6488EA ΔE 0.044
- Windows Blue #3778BF ΔE 0.053
- Water Blue #0E87CC ΔE 0.053
- Cornflower #6A79F7 ΔE 0.054
- Royal Blue #4169E1 ΔE 0.056
- Clear Blue #247AFD ΔE 0.057
- Cool Blue #4984B8 ΔE 0.064
Use #4D7DDD 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.