#4DA9EB
Closest named color: Cornflower Blue (#6495ED). oklch(70.7% 0.13 242.9), rgb(77, 169, 235).
Aa
Black text reads best on this color (8.19:1).
About this color
#4DA9EB is a medium-light, moderately saturated blue. In OKLCH its lightness is 71%, its chroma 0.130 and its hue 243°. Its hue sits on the cool side of the wheel. The nearest named color is Cornflower Blue (#6495ED), ΔE 0.056 away. Black text reads best on it, at 8.19:1.
| Hue family | Blues |
| Lightness | medium-light (71%) |
| Chroma | moderately saturated (0.130) |
| Temperature | cool |
| Nearest name | Cornflower Blue (#6495ED) |
| Black text | 8.19:1 |
| White text | 2.56:1 |
Values
| HEX | #4DA9EB |
| RGB | rgb(77, 169, 235) |
| HSL | hsl(205, 80%, 61%) |
| OKLCH | oklch(70.7% 0.13 242.9) |
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 #4DA9EB | 2.56:1 | Fails | Lc -55.0 | Large or bold text, headings |
| Black text on #4DA9EB | 8.19:1 | AAA | Lc 54.1 | Large or bold text, headings |
| #4DA9EB text on white | 2.56:1 | Fails | Lc 49.9 | Large or bold text, headings |
| #4DA9EB text on black | 8.19:1 | AAA | Lc -52.1 | Large or bold text, headings |
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 400.
-
Step 50
50
#EFF6FC
oklch(97% 0.011 243.7)
-
Step 100
100
#DDECF9
oklch(93.6% 0.024 244.1)
-
Step 200
200
#C0DDF5
oklch(88.4% 0.045 243.2)
-
Step 300
300
#92C7F1
oklch(80.8% 0.081 242.9)
-
Step 400
400 (this color)
#4DA9EB
oklch(70.7% 0.13 242.9)
-
Step 500
500
#0091DD
oklch(63.1% 0.152 242.9)
-
Step 600
600
#007ABB
oklch(55.7% 0.134 242.9)
-
Step 700
700
#00669E
oklch(49% 0.119 243.2)
-
Step 800
800
#005482
oklch(42.8% 0.102 242.4)
-
Step 900
900
#00466E
oklch(37.8% 0.091 242.8)
-
Step 950
950
#002943
oklch(27% 0.065 242.6)
#4DA9EB 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) | #8BAAEE | 0.062 |
| Deuteranopia (no green cones) | #759BEA | 0.048 |
| Tritanopia (no blue cones) | #00B9C0 | 0.093 |
| Achromatopsia (no color) | #A2A2A2 | 0.130 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #4DA9EB
#4DA9EB
oklch(70.7% 0.13 242.9)
- #D98D40
#D98D40
oklch(70.7% 0.13 63.1)
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 #4DA9EB, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Cornflower Blue #6495ED ΔE 0.056
- Chefchaouen Blue #4895EF ΔE 0.057
- Deep Sky Blue #00BFFF ΔE 0.060
- Dark Sky Blue #448EE4 ΔE 0.075
- Turquoise Blue #06B1C4 ΔE 0.076
- Carolina Blue #8AB8FE ΔE 0.079
- Greyblue #77A1B5 ΔE 0.082
- Periwinkle Blue #8F99FB ΔE 0.083
Use #4DA9EB 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.