#499DFB
Closest named color: Chefchaouen Blue (#4895EF). oklch(68.8% 0.161 253.3), rgb(73, 157, 251).
Aa
Black text reads best on this color (7.49:1).
About this color
#499DFB is a medium-light, vivid blue. In OKLCH its lightness is 69%, its chroma 0.161 and its hue 253°. Its hue sits on the cool side of the wheel. The nearest named color is Chefchaouen Blue (#4895EF), ΔE 0.026 away. Black text reads best on it, at 7.49:1.
| Hue family | Blues |
| Lightness | medium-light (69%) |
| Chroma | vivid (0.161) |
| Temperature | cool |
| Nearest name | Chefchaouen Blue (#4895EF) |
| Black text | 7.49:1 |
| White text | 2.80:1 |
Values
| HEX | #499DFB |
| RGB | rgb(73, 157, 251) |
| HSL | hsl(212, 96%, 64%) |
| OKLCH | oklch(68.8% 0.161 253.3) |
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 #499DFB | 2.80:1 | Fails | Lc -58.8 | Large or bold text, headings |
| Black text on #499DFB | 7.49:1 | AAA | Lc 50.5 | Large or bold text, headings |
| #499DFB text on white | 2.80:1 | Fails | Lc 53.5 | Large or bold text, headings |
| #499DFB text on black | 7.49:1 | AAA | Lc -48.3 | 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
#EFF6FF
oklch(97% 0.014 254.6)
-
Step 100
100
#DDECFD
oklch(93.7% 0.028 251.5)
-
Step 200
200
#C0DCFE
oklch(88.5% 0.056 253.4)
-
Step 300
300
#93C4FF
oklch(80.8% 0.099 253.5)
-
Step 400
400 (this color)
#499DFB
oklch(68.8% 0.161 253.3)
-
Step 500
500
#0089FB
oklch(63.1% 0.196 253.2)
-
Step 600
600
#0073D5
oklch(55.7% 0.173 253.3)
-
Step 700
700
#0060B4
oklch(49.1% 0.153 253.4)
-
Step 800
800
#004E95
oklch(42.6% 0.134 253.6)
-
Step 900
900
#00417D
oklch(37.6% 0.117 253.3)
-
Step 950
950
#00264E
oklch(27% 0.085 253.5)
#499DFB 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) | #72A3FF | 0.043 |
| Deuteranopia (no green cones) | #5793F9 | 0.026 |
| Tritanopia (no blue cones) | #00B3C0 | 0.123 |
| Achromatopsia (no color) | #9A9A9A | 0.161 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #499DFB
#499DFB
oklch(68.8% 0.161 253.3)
- #D08A00
#D08A00
oklch(68.8% 0.146 73.4)
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 #499DFB, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Chefchaouen Blue #4895EF ΔE 0.026
- Cornflower Blue #6495ED ΔE 0.032
- Dodger Blue #1E90FF ΔE 0.046
- Dark Sky Blue #448EE4 ΔE 0.049
- Soft Blue #6488EA ΔE 0.057
- Periwinkle Blue #8F99FB ΔE 0.072
- Lavender Blue #8B88F8 ΔE 0.081
- Perrywinkle #8F8CE7 ΔE 0.082
Use #499DFB 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.