#438ADF
Closest named color: Dark Sky Blue (#448EE4). oklch(62.8% 0.147 254.5), rgb(67, 138, 223).
Aa
Black text reads best on this color (5.93:1).
About this color
#438ADF is a medium-light, vivid blue. In OKLCH its lightness is 63%, its chroma 0.147 and its hue 255°. Its hue sits on the cool side of the wheel. The nearest named color is Dark Sky Blue (#448EE4), ΔE 0.012 away. Black text reads best on it, at 5.93:1.
| Hue family | Blues |
| Lightness | medium-light (63%) |
| Chroma | vivid (0.147) |
| Temperature | cool |
| Nearest name | Dark Sky Blue (#448EE4) |
| Black text | 5.93:1 |
| White text | 3.53:1 |
Values
| HEX | #438ADF |
| RGB | rgb(67, 138, 223) |
| HSL | hsl(213, 71%, 57%) |
| OKLCH | oklch(62.8% 0.147 254.5) |
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 #438ADF | 3.53:1 | AA large text | Lc -68.1 | Content text, not long reading |
| Black text on #438ADF | 5.93:1 | AA | Lc 41.5 | Non-text elements, placeholder text |
| #438ADF text on white | 3.53:1 | AA large text | Lc 62.6 | Content text, not long reading |
| #438ADF text on black | 5.93:1 | AA | Lc -39.1 | 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
#F1F6FC
oklch(97.1% 0.01 252.8)
-
Step 100
100
#E1EBF8
oklch(93.6% 0.021 254.9)
-
Step 200
200
#C8DBF4
oklch(88.5% 0.04 255.3)
-
Step 300
300
#A1C4EF
oklch(81% 0.072 253.8)
-
Step 400
400
#6DA3E7
oklch(70.6% 0.116 254.8)
-
Step 500
500 (this color)
#438ADF
oklch(62.8% 0.147 254.5)
-
Step 600
600
#2173CE
oklch(55.7% 0.16 254.6)
-
Step 700
700
#1260B2
oklch(49.2% 0.148 254.5)
-
Step 800
800
#134F90
oklch(42.8% 0.123 254.2)
-
Step 900
900
#184273
oklch(37.7% 0.096 254.4)
-
Step 950
950
#0F2743
oklch(27% 0.06 253.9)
#438ADF 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) | #6390E2 | 0.037 |
| Deuteranopia (no green cones) | #4B82DD | 0.021 |
| Tritanopia (no blue cones) | #009EAA | 0.114 |
| Achromatopsia (no color) | #888888 | 0.147 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #438ADF
#438ADF
oklch(62.8% 0.147 254.5)
- #B77B00
#B77B00
oklch(62.9% 0.133 74.9)
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 #438ADF, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Sky Blue #448EE4 ΔE 0.012
- Chefchaouen Blue #4895EF ΔE 0.036
- Soft Blue #6488EA ΔE 0.037
- Water Blue #0E87CC ΔE 0.042
- Dodger Blue #1E90FF ΔE 0.049
- Cornflower Blue #6495ED ΔE 0.050
- Cool Blue #4984B8 ΔE 0.059
- Faded Blue #658CBB ΔE 0.064
Use #438ADF 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.