#439DCC
Closest named color: Faded Blue (#658CBB). oklch(66.2% 0.11 234.7), rgb(67, 157, 204).
Aa
Black text reads best on this color (6.93:1).
About this color
#439DCC is a medium-light, moderately saturated blue. In OKLCH its lightness is 66%, its chroma 0.110 and its hue 235°. Its hue sits on the cool side of the wheel. The nearest named color is Faded Blue (#658CBB), ΔE 0.052 away. Black text reads best on it, at 6.93:1.
| Hue family | Blues |
| Lightness | medium-light (66%) |
| Chroma | moderately saturated (0.110) |
| Temperature | cool |
| Nearest name | Faded Blue (#658CBB) |
| Black text | 6.93:1 |
| White text | 3.02:1 |
Values
| HEX | #439DCC |
| RGB | rgb(67, 157, 204) |
| HSL | hsl(201, 57%, 53%) |
| OKLCH | oklch(66.2% 0.11 234.7) |
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 #439DCC | 3.02:1 | AA large text | Lc -62.1 | Content text, not long reading |
| Black text on #439DCC | 6.93:1 | AA | Lc 47.3 | Large or bold text, headings |
| #439DCC text on white | 3.02:1 | AA large text | Lc 56.8 | Large or bold text, headings |
| #439DCC text on black | 6.93:1 | AA | Lc -45.0 | 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
#F1F6FA
oklch(97.1% 0.008 241.7)
-
Step 100
100
#E0ECF3
oklch(93.6% 0.016 233)
-
Step 200
200
#C7DDEA
oklch(88.5% 0.03 233.6)
-
Step 300
300
#A0C7DF
oklch(81% 0.054 235.3)
-
Step 400
400
#68AACF
oklch(70.8% 0.086 234.4)
-
Step 500
500 (this color)
#439DCC
oklch(66.2% 0.11 234.7)
-
Step 600
600
#007DAE
oklch(55.7% 0.118 234.9)
-
Step 700
700
#006993
oklch(49.2% 0.104 234.9)
-
Step 800
800
#005679
oklch(42.8% 0.09 234.7)
-
Step 900
900
#0F4762
oklch(37.7% 0.072 235)
-
Step 950
950
#0C2A39
oklch(27% 0.045 233.7)
#439DCC 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) | #869CCE | 0.068 |
| Deuteranopia (no green cones) | #748ECB | 0.058 |
| Tritanopia (no blue cones) | #00A9AD | 0.071 |
| Achromatopsia (no color) | #949494 | 0.110 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #439DCC
#439DCC
oklch(66.2% 0.11 234.7)
- #C67F4D
#C67F4D
oklch(66% 0.11 54.7)
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 #439DCC, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Faded Blue #658CBB ΔE 0.052
- Greyblue #77A1B5 ΔE 0.061
- Dark Sky Blue #448EE4 ΔE 0.062
- Chefchaouen Blue #4895EF ΔE 0.062
- Turquoise Blue #06B1C4 ΔE 0.063
- Cornflower Blue #6495ED ΔE 0.067
- Dusty Blue #5A86AD ΔE 0.069
- Cadet Blue #5F9EA0 ΔE 0.069
Use #439DCC 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.