#438AD4
Closest named color: Dark Sky Blue (#448EE4). oklch(62.2% 0.133 251.6), rgb(67, 138, 212).
Aa
Black text reads best on this color (5.82:1).
About this color
#438AD4 is a medium-light, moderately saturated blue. In OKLCH its lightness is 62%, its chroma 0.133 and its hue 252°. Its hue sits on the cool side of the wheel. The nearest named color is Dark Sky Blue (#448EE4), ΔE 0.025 away. Black text reads best on it, at 5.82:1.
| Hue family | Blues |
| Lightness | medium-light (62%) |
| Chroma | moderately saturated (0.133) |
| Temperature | cool |
| Nearest name | Dark Sky Blue (#448EE4) |
| Black text | 5.82:1 |
| White text | 3.60:1 |
Values
| HEX | #438AD4 |
| RGB | rgb(67, 138, 212) |
| HSL | hsl(211, 63%, 55%) |
| OKLCH | oklch(62.2% 0.133 251.6) |
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 #438AD4 | 3.60:1 | AA large text | Lc -68.8 | Content text, not long reading |
| Black text on #438AD4 | 5.82:1 | AA | Lc 40.7 | Non-text elements, placeholder text |
| #438AD4 text on white | 3.60:1 | AA large text | Lc 63.4 | Content text, not long reading |
| #438AD4 text on black | 5.82:1 | AA | Lc -38.3 | 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
#C8DBF1
oklch(88.4% 0.037 252.1)
-
Step 300
300
#A2C4EA
oklch(80.9% 0.065 251.5)
-
Step 400
400
#6FA5E0
oklch(70.8% 0.104 251.5)
-
Step 500
500 (this color)
#438AD4
oklch(62.2% 0.133 251.6)
-
Step 600
600
#2375C4
oklch(55.5% 0.145 251.7)
-
Step 700
700
#1462AA
oklch(49.1% 0.135 251.8)
-
Step 800
800
#155089
oklch(42.6% 0.111 251.8)
-
Step 900
900
#19436E
oklch(37.7% 0.087 251.7)
-
Step 950
950
#102840
oklch(27.1% 0.054 250.5)
#438AD4 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) | #698ED7 | 0.041 |
| Deuteranopia (no green cones) | #5481D3 | 0.026 |
| Tritanopia (no blue cones) | #009BA5 | 0.102 |
| Achromatopsia (no color) | #878787 | 0.133 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #438AD4
#438AD4
oklch(62.2% 0.133 251.6)
- #B87701
#B87701
oklch(62.3% 0.133 71.5)
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 #438AD4, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Sky Blue #448EE4 ΔE 0.025
- Water Blue #0E87CC ΔE 0.033
- Cool Blue #4984B8 ΔE 0.042
- Chefchaouen Blue #4895EF ΔE 0.047
- Soft Blue #6488EA ΔE 0.049
- Steel Blue #4682B4 ΔE 0.049
- Faded Blue #658CBB ΔE 0.050
- Off Blue #5684AE ΔE 0.057
Use #438AD4 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.