#438EF0
Closest named color: Dark Sky Blue (#448EE4). oklch(64.7% 0.165 256.3), rgb(67, 142, 240).
Aa
Black text reads best on this color (6.36:1).
About this color
#438EF0 is a medium-light, vivid blue. In OKLCH its lightness is 65%, its chroma 0.165 and its hue 256°. Its hue sits on the cool side of the wheel. The nearest named color is Dark Sky Blue (#448EE4), ΔE 0.018 away. Black text reads best on it, at 6.36:1.
| Hue family | Blues |
| Lightness | medium-light (65%) |
| Chroma | vivid (0.165) |
| Temperature | cool |
| Nearest name | Dark Sky Blue (#448EE4) |
| Black text | 6.36:1 |
| White text | 3.29:1 |
Values
| HEX | #438EF0 |
| RGB | rgb(67, 142, 240) |
| HSL | hsl(214, 85%, 60%) |
| OKLCH | oklch(64.7% 0.165 256.3) |
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 #438EF0 | 3.29:1 | AA large text | Lc -65.4 | Content text, not long reading |
| Black text on #438EF0 | 6.36:1 | AA | Lc 44.1 | Non-text elements, placeholder text |
| #438EF0 text on white | 3.29:1 | AA large text | Lc 60.0 | Large or bold text, headings |
| #438EF0 text on black | 6.36:1 | AA | Lc -41.7 | 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
#F1F6FD
oklch(97.1% 0.011 256.7)
-
Step 100
100
#E0EBFA
oklch(93.6% 0.024 256.1)
-
Step 200
200
#C6DBF7
oklch(88.5% 0.045 255.6)
-
Step 300
300
#9FC3F5
oklch(80.9% 0.081 256.7)
-
Step 400
400
#69A2F0
oklch(70.6% 0.13 256.5)
-
Step 500
500 (this color)
#438EF0
oklch(64.7% 0.165 256.3)
-
Step 600
600
#1770D9
oklch(55.6% 0.179 256.4)
-
Step 700
700
#055DBC
oklch(49.1% 0.167 256.3)
-
Step 800
800
#0C4D98
oklch(42.8% 0.137 256.1)
-
Step 900
900
#144179
oklch(37.8% 0.107 256)
-
Step 950
950
#0D2647
oklch(26.9% 0.069 256.4)
#438EF0 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) | #5F96F4 | 0.036 |
| Deuteranopia (no green cones) | #4286EE | 0.021 |
| Tritanopia (no blue cones) | #00A5B3 | 0.128 |
| Achromatopsia (no color) | #8D8D8D | 0.165 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #438EF0
#438EF0
oklch(64.7% 0.165 256.3)
- #BD8100
#BD8100
oklch(64.8% 0.136 76.1)
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 #438EF0, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Sky Blue #448EE4 ΔE 0.018
- Chefchaouen Blue #4895EF ΔE 0.020
- Dodger Blue #1E90FF ΔE 0.028
- Soft Blue #6488EA ΔE 0.032
- Cornflower Blue #6495ED ΔE 0.038
- Cornflower #6A79F7 ΔE 0.063
- Clear Blue #247AFD ΔE 0.063
- Water Blue #0E87CC ΔE 0.065
Use #438EF0 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.