#139AFF
Closest named color: Dodger Blue (#1E90FF). oklch(67.3% 0.181 249.1), rgb(19, 154, 255).
Aa
Black text reads best on this color (7.09:1).
About this color
#139AFF is a medium-light, vivid blue. In OKLCH its lightness is 67%, its chroma 0.181 and its hue 249°. Its hue sits on the cool side of the wheel. The nearest named color is Dodger Blue (#1E90FF), ΔE 0.026 away. Black text reads best on it, at 7.09:1.
| Hue family | Blues |
| Lightness | medium-light (67%) |
| Chroma | vivid (0.181) |
| Temperature | cool |
| Nearest name | Dodger Blue (#1E90FF) |
| Black text | 7.09:1 |
| White text | 2.96:1 |
Values
| HEX | #139AFF |
| RGB | rgb(19, 154, 255) |
| HSL | hsl(206, 100%, 54%) |
| OKLCH | oklch(67.3% 0.181 249.1) |
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 #139AFF | 2.96:1 | Fails | Lc -60.8 | Content text, not long reading |
| Black text on #139AFF | 7.09:1 | AAA | Lc 48.6 | Large or bold text, headings |
| #139AFF text on white | 2.96:1 | Fails | Lc 55.5 | Large or bold text, headings |
| #139AFF text on black | 7.09:1 | AAA | Lc -46.3 | 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 400.
-
Step 50
50
#EEF7FF
oklch(97.2% 0.014 244.7)
-
Step 100
100
#DAECFF
oklch(93.6% 0.032 249.6)
-
Step 200
200
#BCDDFF
oklch(88.5% 0.059 249.3)
-
Step 300
300
#8DC6FF
oklch(80.9% 0.1 249.2)
-
Step 400
400 (this color)
#139AFF
oklch(67.3% 0.181 249.1)
-
Step 500
500
#008DED
oklch(63.1% 0.175 249.1)
-
Step 600
600
#0076C8
oklch(55.5% 0.154 249.2)
-
Step 700
700
#0063A9
oklch(49% 0.136 249.1)
-
Step 800
800
#00518C
oklch(42.7% 0.118 249.2)
-
Step 900
900
#004376
oklch(37.6% 0.105 249.5)
-
Step 950
950
#002849
oklch(27.1% 0.074 248.8)
#139AFF 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) | #67A1FF | 0.058 |
| Deuteranopia (no green cones) | #418DFD | 0.035 |
| Tritanopia (no blue cones) | #00B2C0 | 0.129 |
| Achromatopsia (no color) | #969696 | 0.181 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #139AFF
#139AFF
oklch(67.3% 0.181 249.1)
- #CF8300
#CF8300
oklch(67.4% 0.146 69.4)
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 #139AFF, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dodger Blue #1E90FF ΔE 0.026
- Chefchaouen Blue #4895EF ΔE 0.032
- Dark Sky Blue #448EE4 ΔE 0.047
- Cornflower Blue #6495ED ΔE 0.052
- Soft Blue #6488EA ΔE 0.065
- Clear Blue #247AFD ΔE 0.081
- Water Blue #0E87CC ΔE 0.086
- Cornflower #6A79F7 ΔE 0.092
Use #139AFF 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.