#4D90E7
Closest named color: Dark Sky Blue (#448EE4). oklch(65% 0.148 255.9), rgb(77, 144, 231).
Aa
Black text reads best on this color (6.45:1).
About this color
#4D90E7 is a medium-light, vivid blue. In OKLCH its lightness is 65%, its chroma 0.148 and its hue 256°. Its hue sits on the cool side of the wheel. The nearest named color is Dark Sky Blue (#448EE4), ΔE 0.011 away. Black text reads best on it, at 6.45:1.
| Hue family | Blues |
| Lightness | medium-light (65%) |
| Chroma | vivid (0.148) |
| Temperature | cool |
| Nearest name | Dark Sky Blue (#448EE4) |
| Black text | 6.45:1 |
| White text | 3.25:1 |
Values
| HEX | #4D90E7 |
| RGB | rgb(77, 144, 231) |
| HSL | hsl(214, 76%, 60%) |
| OKLCH | oklch(65% 0.148 255.9) |
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 #4D90E7 | 3.25:1 | AA large text | Lc -65.0 | Content text, not long reading |
| Black text on #4D90E7 | 6.45:1 | AA | Lc 44.5 | Non-text elements, placeholder text |
| #4D90E7 text on white | 3.25:1 | AA large text | Lc 59.5 | Large or bold text, headings |
| #4D90E7 text on black | 6.45:1 | AA | Lc -42.2 | 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
#C8DBF4
oklch(88.5% 0.04 255.3)
-
Step 300
300
#A2C3EF
oklch(80.8% 0.072 255.7)
-
Step 400
400
#6FA3E8
oklch(70.8% 0.116 255.8)
-
Step 500
500 (this color)
#4D90E7
oklch(65% 0.148 255.9)
-
Step 600
600
#2672CE
oklch(55.6% 0.16 255.7)
-
Step 700
700
#185FB3
oklch(49.1% 0.15 255.9)
-
Step 800
800
#174E91
oklch(42.7% 0.124 255.9)
-
Step 900
900
#1A4173
oklch(37.5% 0.096 256)
-
Step 950
950
#102744
oklch(27.1% 0.062 255.3)
#4D90E7 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) | #6996EB | 0.034 |
| Deuteranopia (no green cones) | #5288E5 | 0.021 |
| Tritanopia (no blue cones) | #00A4B0 | 0.118 |
| Achromatopsia (no color) | #8F8F8F | 0.148 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #4D90E7
#4D90E7
oklch(65% 0.148 255.9)
- #BE8100
#BE8100
oklch(64.9% 0.137 75.6)
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 #4D90E7, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Sky Blue #448EE4 ΔE 0.011
- Chefchaouen Blue #4895EF ΔE 0.016
- Cornflower Blue #6495ED ΔE 0.029
- Soft Blue #6488EA ΔE 0.030
- Dodger Blue #1E90FF ΔE 0.043
- Water Blue #0E87CC ΔE 0.061
- Faded Blue #658CBB ΔE 0.067
- Cornflower #6A79F7 ΔE 0.070
Use #4D90E7 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.