#4D99EC
Closest named color: Chefchaouen Blue (#4895EF). oklch(67.2% 0.145 252.5), rgb(77, 153, 236).
Aa
Black text reads best on this color (7.08:1).
About this color
#4D99EC is a medium-light, vivid blue. In OKLCH its lightness is 67%, its chroma 0.145 and its hue 253°. Its hue sits on the cool side of the wheel. The nearest named color is Chefchaouen Blue (#4895EF), ΔE 0.014 away. Black text reads best on it, at 7.08:1.
| Hue family | Blues |
| Lightness | medium-light (67%) |
| Chroma | vivid (0.145) |
| Temperature | cool |
| Nearest name | Chefchaouen Blue (#4895EF) |
| Black text | 7.08:1 |
| White text | 2.96:1 |
Values
| HEX | #4D99EC |
| RGB | rgb(77, 153, 236) |
| HSL | hsl(211, 81%, 61%) |
| OKLCH | oklch(67.2% 0.145 252.5) |
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 #4D99EC | 2.96:1 | Fails | Lc -61.3 | Content text, not long reading |
| Black text on #4D99EC | 7.08:1 | AAA | Lc 48.1 | Large or bold text, headings |
| #4D99EC text on white | 2.96:1 | Fails | Lc 55.9 | Large or bold text, headings |
| #4D99EC text on black | 7.08:1 | AAA | Lc -45.9 | 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
#F0F6FE
oklch(97.1% 0.012 255.5)
-
Step 100
100
#DEEBFB
oklch(93.5% 0.026 253.6)
-
Step 200
200
#C2DCFA
oklch(88.5% 0.05 252.1)
-
Step 300
300
#96C5FA
oklch(81% 0.09 251.9)
-
Step 400
400 (this color)
#4D99EC
oklch(67.2% 0.145 252.5)
-
Step 500
500
#148AF5
oklch(63.1% 0.186 252.7)
-
Step 600
600
#0073D2
oklch(55.5% 0.17 252.7)
-
Step 700
700
#0061B2
oklch(49.2% 0.149 252.5)
-
Step 800
800
#004F93
oklch(42.7% 0.13 252.6)
-
Step 900
900
#00427C
oklch(37.8% 0.114 252.4)
-
Step 950
950
#03274A
oklch(27% 0.076 251.9)
#4D99EC 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) | #749EEF | 0.042 |
| Deuteranopia (no green cones) | #5D8FEA | 0.028 |
| Tritanopia (no blue cones) | #00ACB7 | 0.113 |
| Achromatopsia (no color) | #969696 | 0.145 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #4D99EC
#4D99EC
oklch(67.2% 0.145 252.5)
- #CB8500
#CB8500
oklch(67.2% 0.144 72.3)
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 #4D99EC, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Chefchaouen Blue #4895EF ΔE 0.014
- Cornflower Blue #6495ED ΔE 0.022
- Dark Sky Blue #448EE4 ΔE 0.032
- Soft Blue #6488EA ΔE 0.046
- Dodger Blue #1E90FF ΔE 0.050
- Faded Blue #658CBB ΔE 0.075
- Perrywinkle #8F8CE7 ΔE 0.076
- Periwinkle Blue #8F99FB ΔE 0.077
Use #4D99EC 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.