#4292D8
Closest named color: Dark Sky Blue (#448EE4). oklch(64.2% 0.131 247.9), rgb(66, 146, 216).
Aa
Black text reads best on this color (6.33:1).
About this color
#4292D8 is a medium-light, moderately saturated blue. In OKLCH its lightness is 64%, its chroma 0.131 and its hue 248°. Its hue sits on the cool side of the wheel. The nearest named color is Dark Sky Blue (#448EE4), ΔE 0.023 away. Black text reads best on it, at 6.33:1.
| Hue family | Blues |
| Lightness | medium-light (64%) |
| Chroma | moderately saturated (0.131) |
| Temperature | cool |
| Nearest name | Dark Sky Blue (#448EE4) |
| Black text | 6.33:1 |
| White text | 3.31:1 |
Values
| HEX | #4292D8 |
| RGB | rgb(66, 146, 216) |
| HSL | hsl(208, 66%, 55%) |
| OKLCH | oklch(64.2% 0.131 247.9) |
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 #4292D8 | 3.31:1 | AA large text | Lc -65.7 | Content text, not long reading |
| Black text on #4292D8 | 6.33:1 | AA | Lc 43.8 | Non-text elements, placeholder text |
| #4292D8 text on white | 3.31:1 | AA large text | Lc 60.2 | Content text, not long reading |
| #4292D8 text on black | 6.33:1 | AA | Lc -41.5 | 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
#F1F6FB
oklch(97.1% 0.009 247.9)
-
Step 100
100
#E1EBF6
oklch(93.6% 0.018 250.6)
-
Step 200
200
#C7DCF0
oklch(88.5% 0.036 246.9)
-
Step 300
300
#A0C5E9
oklch(80.9% 0.065 247.9)
-
Step 400
400
#6BA6DE
oklch(70.7% 0.103 248.2)
-
Step 500
500 (this color)
#4292D8
oklch(64.2% 0.131 247.9)
-
Step 600
600
#1377C2
oklch(55.6% 0.143 248.2)
-
Step 700
700
#0064A7
oklch(49.1% 0.132 247.9)
-
Step 800
800
#095287
oklch(42.7% 0.109 247.6)
-
Step 900
900
#14446C
oklch(37.6% 0.085 247.9)
-
Step 950
950
#0E283F
oklch(26.9% 0.054 248)
#4292D8 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) | #7395DB | 0.050 |
| Deuteranopia (no green cones) | #5E87D7 | 0.036 |
| Tritanopia (no blue cones) | #00A3AB | 0.098 |
| Achromatopsia (no color) | #8D8D8D | 0.131 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #4292D8
#4292D8
oklch(64.2% 0.131 247.9)
- #C07B1E
#C07B1E
oklch(64.1% 0.131 67.9)
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 #4292D8, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Sky Blue #448EE4 ΔE 0.023
- Chefchaouen Blue #4895EF ΔE 0.035
- Water Blue #0E87CC ΔE 0.046
- Cornflower Blue #6495ED ΔE 0.047
- Faded Blue #658CBB ΔE 0.050
- Soft Blue #6488EA ΔE 0.051
- Cool Blue #4984B8 ΔE 0.055
- Dodger Blue #1E90FF ΔE 0.062
Use #4292D8 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.