#4191CD
Closest named color: Dark Sky Blue (#448EE4). oklch(63.4% 0.119 244.1), rgb(65, 145, 205).
Aa
Black text reads best on this color (6.15:1).
About this color
#4191CD is a medium-light, moderately saturated blue. In OKLCH its lightness is 63%, its chroma 0.119 and its hue 244°. Its hue sits on the cool side of the wheel. The nearest named color is Dark Sky Blue (#448EE4), ΔE 0.038 away. Black text reads best on it, at 6.15:1.
| Hue family | Blues |
| Lightness | medium-light (63%) |
| Chroma | moderately saturated (0.119) |
| Temperature | cool |
| Nearest name | Dark Sky Blue (#448EE4) |
| Black text | 6.15:1 |
| White text | 3.41:1 |
Values
| HEX | #4191CD |
| RGB | rgb(65, 145, 205) |
| HSL | hsl(206, 58%, 53%) |
| OKLCH | oklch(63.4% 0.119 244.1) |
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 #4191CD | 3.41:1 | AA large text | Lc -66.8 | Content text, not long reading |
| Black text on #4191CD | 6.15:1 | AA | Lc 42.7 | Non-text elements, placeholder text |
| #4191CD text on white | 3.41:1 | AA large text | Lc 61.3 | Content text, not long reading |
| #4191CD text on black | 6.15:1 | AA | Lc -40.4 | 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
#E1EBF5
oklch(93.5% 0.017 248)
-
Step 200
200
#C8DCEE
oklch(88.5% 0.033 245.3)
-
Step 300
300
#A1C6E4
oklch(81% 0.058 243)
-
Step 400
400
#6CA7D7
oklch(70.7% 0.094 244.2)
-
Step 500
500 (this color)
#4191CD
oklch(63.4% 0.119 244.1)
-
Step 600
600
#1679B9
oklch(55.5% 0.13 244.2)
-
Step 700
700
#01669F
oklch(49.1% 0.12 243.7)
-
Step 800
800
#0B5381
oklch(42.6% 0.1 244.1)
-
Step 900
900
#154568
oklch(37.7% 0.079 244.5)
-
Step 950
950
#0E293D
oklch(27.1% 0.05 243.6)
#4191CD 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) | #7692D0 | 0.054 |
| Deuteranopia (no green cones) | #6385CC | 0.042 |
| Tritanopia (no blue cones) | #00A0A6 | 0.087 |
| Achromatopsia (no color) | #8B8B8B | 0.119 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #4191CD
#4191CD
oklch(63.4% 0.119 244.1)
- #BC7931
#BC7931
oklch(63.4% 0.12 64.1)
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 #4191CD, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Sky Blue #448EE4 ΔE 0.038
- Faded Blue #658CBB ΔE 0.040
- Water Blue #0E87CC ΔE 0.041
- Cool Blue #4984B8 ΔE 0.042
- Steel Blue #4682B4 ΔE 0.050
- Chefchaouen Blue #4895EF ΔE 0.052
- Dusty Blue #5A86AD ΔE 0.052
- Off Blue #5684AE ΔE 0.052
Use #4191CD 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.