#4384B4
Closest named color: Steel Blue (#4682B4). oklch(59.1% 0.099 242.9), rgb(67, 132, 180).
Aa
Black text reads best on this color (5.19:1).
About this color
#4384B4 is a medium-dark, moderately saturated blue. In OKLCH its lightness is 59%, its chroma 0.099 and its hue 243°. Its hue sits on the cool side of the wheel. The nearest named color is Steel Blue (#4682B4), ΔE 0.006 away. Black text reads best on it, at 5.19:1.
| Hue family | Blues |
| Lightness | medium-dark (59%) |
| Chroma | moderately saturated (0.099) |
| Temperature | cool |
| Nearest name | Steel Blue (#4682B4) |
| Black text | 5.19:1 |
| White text | 4.03:1 |
Values
| HEX | #4384B4 |
| RGB | rgb(67, 132, 180) |
| HSL | hsl(205, 46%, 48%) |
| OKLCH | oklch(59.1% 0.099 242.9) |
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 #4384B4 | 4.03:1 | AA large text | Lc -72.9 | Content text, not long reading |
| Black text on #4384B4 | 5.19:1 | AA | Lc 36.6 | Non-text elements, placeholder text |
| #4384B4 text on white | 4.03:1 | AA large text | Lc 67.4 | Content text, not long reading |
| #4384B4 text on black | 5.19:1 | AA | Lc -34.2 | 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 600.
-
Step 50
50
#F2F6F9
oklch(97.1% 0.006 239.8)
-
Step 100
100
#E3EBF2
oklch(93.6% 0.013 244.3)
-
Step 200
200
#CCDBE9
oklch(88.4% 0.025 246.2)
-
Step 300
300
#A8C5DC
oklch(80.9% 0.045 242.1)
-
Step 400
400
#79A6CA
oklch(70.6% 0.072 243.1)
-
Step 500
500
#5590BC
oklch(63.1% 0.091 242.3)
-
Step 600
600 (this color)
#4384B4
oklch(59.1% 0.099 242.9)
-
Step 700
700
#2A6691
oklch(49.1% 0.093 243.1)
-
Step 800
800
#245375
oklch(42.6% 0.076 242.9)
-
Step 900
900
#23455F
oklch(37.7% 0.06 243.4)
-
Step 950
950
#152937
oklch(27.1% 0.037 240.5)
#4384B4 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) | #6F85B6 | 0.049 |
| Deuteranopia (no green cones) | #5F79B3 | 0.039 |
| Tritanopia (no blue cones) | #009095 | 0.075 |
| Achromatopsia (no color) | #7E7E7E | 0.099 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #4384B4
#4384B4
oklch(59.1% 0.099 242.9)
- #A7703A
#A7703A
oklch(59.2% 0.099 63.3)
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 #4384B4, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Steel Blue #4682B4 ΔE 0.006
- Cool Blue #4984B8 ΔE 0.009
- Off Blue #5684AE ΔE 0.020
- Dusty Blue #5A86AD ΔE 0.026
- Blue NCS #118AB2 ΔE 0.030
- Cerulean #457B9D ΔE 0.039
- Stormy Blue #507B9C ΔE 0.039
- Water Blue #0E87CC ΔE 0.042
Use #4384B4 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.