#499EE9
Closest named color: Chefchaouen Blue (#4895EF). oklch(68% 0.138 248), rgb(73, 158, 233).
Aa
Black text reads best on this color (7.35:1).
About this color
#499EE9 is a medium-light, moderately saturated blue. In OKLCH its lightness is 68%, its chroma 0.138 and its hue 248°. Its hue sits on the cool side of the wheel. The nearest named color is Chefchaouen Blue (#4895EF), ΔE 0.028 away. Black text reads best on it, at 7.35:1.
| Hue family | Blues |
| Lightness | medium-light (68%) |
| Chroma | moderately saturated (0.138) |
| Temperature | cool |
| Nearest name | Chefchaouen Blue (#4895EF) |
| Black text | 7.35:1 |
| White text | 2.85:1 |
Values
| HEX | #499EE9 |
| RGB | rgb(73, 158, 233) |
| HSL | hsl(208, 78%, 60%) |
| OKLCH | oklch(68% 0.138 248) |
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 #499EE9 | 2.85:1 | Fails | Lc -59.7 | Large or bold text, headings |
| Black text on #499EE9 | 7.35:1 | AAA | Lc 49.6 | Large or bold text, headings |
| #499EE9 text on white | 2.85:1 | Fails | Lc 54.4 | Large or bold text, headings |
| #499EE9 text on black | 7.35:1 | AAA | Lc -47.4 | 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
#F0F6FD
oklch(97.1% 0.011 252.1)
-
Step 100
100
#DDECFA
oklch(93.6% 0.025 246.2)
-
Step 200
200
#C1DDF8
oklch(88.6% 0.048 247.4)
-
Step 300
300
#94C6F6
oklch(80.9% 0.086 247.9)
-
Step 400
400 (this color)
#499EE9
oklch(68% 0.138 248)
-
Step 500
500
#008EEA
oklch(63.2% 0.17 248)
-
Step 600
600
#0077C6
oklch(55.6% 0.15 248.2)
-
Step 700
700
#0064A7
oklch(49.1% 0.132 247.9)
-
Step 800
800
#00528A
oklch(42.8% 0.115 247.8)
-
Step 900
900
#004474
oklch(37.7% 0.101 247.8)
-
Step 950
950
#002848
oklch(27% 0.073 248.1)
#499EE9 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) | #7CA1EC | 0.051 |
| Deuteranopia (no green cones) | #6692E8 | 0.038 |
| Tritanopia (no blue cones) | #00B0B9 | 0.104 |
| Achromatopsia (no color) | #999999 | 0.138 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #499EE9
#499EE9
oklch(68% 0.138 248)
- #CF8623
#CF8623
oklch(68% 0.138 68.3)
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 #499EE9, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Chefchaouen Blue #4895EF ΔE 0.028
- Cornflower Blue #6495ED ΔE 0.033
- Dark Sky Blue #448EE4 ΔE 0.044
- Soft Blue #6488EA ΔE 0.060
- Dodger Blue #1E90FF ΔE 0.061
- Faded Blue #658CBB ΔE 0.075
- Periwinkle Blue #8F99FB ΔE 0.081
- Water Blue #0E87CC ΔE 0.083
Use #499EE9 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.