#4299CE
Closest named color: Faded Blue (#658CBB). oklch(65.3% 0.115 238.8), rgb(66, 153, 206).
Aa
Black text reads best on this color (6.67:1).
About this color
#4299CE is a medium-light, moderately saturated blue. In OKLCH its lightness is 65%, its chroma 0.115 and its hue 239°. Its hue sits on the cool side of the wheel. The nearest named color is Faded Blue (#658CBB), ΔE 0.046 away. Black text reads best on it, at 6.67:1.
| Hue family | Blues |
| Lightness | medium-light (65%) |
| Chroma | moderately saturated (0.115) |
| Temperature | cool |
| Nearest name | Faded Blue (#658CBB) |
| Black text | 6.67:1 |
| White text | 3.14:1 |
Values
| HEX | #4299CE |
| RGB | rgb(66, 153, 206) |
| HSL | hsl(203, 59%, 53%) |
| OKLCH | oklch(65.3% 0.115 238.8) |
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 #4299CE | 3.14:1 | AA large text | Lc -63.6 | Content text, not long reading |
| Black text on #4299CE | 6.67:1 | AA | Lc 45.8 | Large or bold text, headings |
| #4299CE text on white | 3.14:1 | AA large text | Lc 58.2 | Large or bold text, headings |
| #4299CE text on black | 6.67:1 | AA | Lc -43.5 | 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
#F1F6FA
oklch(97.1% 0.008 241.7)
-
Step 100
100
#E0ECF4
oklch(93.6% 0.017 236.7)
-
Step 200
200
#C7DDEC
oklch(88.6% 0.031 237.6)
-
Step 300
300
#A0C6E1
oklch(80.8% 0.056 239.3)
-
Step 400
400
#69A9D2
oklch(70.8% 0.089 238)
-
Step 500
500 (this color)
#4299CE
oklch(65.3% 0.115 238.8)
-
Step 600
600
#027BB3
oklch(55.5% 0.124 239)
-
Step 700
700
#006898
oklch(49.2% 0.11 238.7)
-
Step 800
800
#00557D
oklch(42.7% 0.096 238.5)
-
Step 900
900
#114665
oklch(37.6% 0.075 239.6)
-
Step 950
950
#0D293B
oklch(26.9% 0.047 240.1)
#4299CE 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) | #8099D0 | 0.062 |
| Deuteranopia (no green cones) | #6D8BCD | 0.052 |
| Tritanopia (no blue cones) | #00A6AB | 0.078 |
| Achromatopsia (no color) | #919191 | 0.115 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #4299CE
#4299CE
oklch(65.3% 0.115 238.8)
- #C37D43
#C37D43
oklch(65.2% 0.114 58.4)
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 #4299CE, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Faded Blue #658CBB ΔE 0.046
- Dark Sky Blue #448EE4 ΔE 0.050
- Chefchaouen Blue #4895EF ΔE 0.054
- Cornflower Blue #6495ED ΔE 0.060
- Cool Blue #4984B8 ΔE 0.060
- Water Blue #0E87CC ΔE 0.061
- Dusty Blue #5A86AD ΔE 0.063
- Blue NCS #118AB2 ΔE 0.064
Use #4299CE 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.