#379CE3
Closest named color: Chefchaouen Blue (#4895EF). oklch(66.7% 0.139 243.8), rgb(55, 156, 227).
Aa
Black text reads best on this color (7.02:1).
About this color
#379CE3 is a medium-light, moderately saturated blue. In OKLCH its lightness is 67%, its chroma 0.139 and its hue 244°. Its hue sits on the cool side of the wheel. The nearest named color is Chefchaouen Blue (#4895EF), ΔE 0.030 away. Black text reads best on it, at 7.02:1.
| Hue family | Blues |
| Lightness | medium-light (67%) |
| Chroma | moderately saturated (0.139) |
| Temperature | cool |
| Nearest name | Chefchaouen Blue (#4895EF) |
| Black text | 7.02:1 |
| White text | 2.98:1 |
Values
| HEX | #379CE3 |
| RGB | rgb(55, 156, 227) |
| HSL | hsl(205, 75%, 55%) |
| OKLCH | oklch(66.7% 0.139 243.8) |
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 #379CE3 | 2.98:1 | Fails | Lc -61.5 | Content text, not long reading |
| Black text on #379CE3 | 7.02:1 | AAA | Lc 47.9 | Large or bold text, headings |
| #379CE3 text on white | 2.98:1 | Fails | Lc 56.1 | Large or bold text, headings |
| #379CE3 text on black | 7.02:1 | AAA | Lc -45.6 | 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 500.
-
Step 50
50
#F0F6FB
oklch(97% 0.009 242.8)
-
Step 100
100
#DFECF6
oklch(93.6% 0.019 240.7)
-
Step 200
200
#C5DDF1
oklch(88.6% 0.038 243.3)
-
Step 300
300
#9BC6EA
oklch(80.8% 0.069 244)
-
Step 400
400
#60A8E0
oklch(70.7% 0.11 243.7)
-
Step 500
500 (this color)
#379CE3
oklch(66.7% 0.139 243.8)
-
Step 600
600
#0079BC
oklch(55.5% 0.136 243.9)
-
Step 700
700
#00669F
oklch(49.1% 0.12 243.6)
-
Step 800
800
#005384
oklch(42.6% 0.106 244.3)
-
Step 900
900
#03456E
oklch(37.6% 0.091 244.3)
-
Step 950
950
#072940
oklch(27% 0.057 243.1)
#379CE3 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) | #7B9EE6 | 0.062 |
| Deuteranopia (no green cones) | #638EE2 | 0.047 |
| Tritanopia (no blue cones) | #00ADB5 | 0.097 |
| Achromatopsia (no color) | #959595 | 0.140 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #379CE3
#379CE3
oklch(66.7% 0.139 243.8)
- #CF7F23
#CF7F23
oklch(66.8% 0.14 63.6)
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 #379CE3, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Chefchaouen Blue #4895EF ΔE 0.030
- Dark Sky Blue #448EE4 ΔE 0.038
- Cornflower Blue #6495ED ΔE 0.044
- Dodger Blue #1E90FF ΔE 0.059
- Soft Blue #6488EA ΔE 0.064
- Water Blue #0E87CC ΔE 0.069
- Faded Blue #658CBB ΔE 0.070
- Cool Blue #4984B8 ΔE 0.081
Use #379CE3 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.