#439AA8
Closest named color: Cadet Blue (#5F9EA0). oklch(63.9% 0.085 209.6), rgb(67, 154, 168).
Aa
Black text reads best on this color (6.42:1).
About this color
#439AA8 is a medium-light, moderately saturated teal or cyan. In OKLCH its lightness is 64%, its chroma 0.085 and its hue 210°. Its hue sits on the cool side of the wheel. The nearest named color is Cadet Blue (#5F9EA0), ΔE 0.031 away. Black text reads best on it, at 6.42:1.
| Hue family | Teals and cyans |
| Lightness | medium-light (64%) |
| Chroma | moderately saturated (0.085) |
| Temperature | cool |
| Nearest name | Cadet Blue (#5F9EA0) |
| Black text | 6.42:1 |
| White text | 3.26:1 |
Values
| HEX | #439AA8 |
| RGB | rgb(67, 154, 168) |
| HSL | hsl(188, 43%, 46%) |
| OKLCH | oklch(63.9% 0.085 209.6) |
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 #439AA8 | 3.26:1 | AA large text | Lc -65.2 | Content text, not long reading |
| Black text on #439AA8 | 6.42:1 | AA | Lc 44.3 | Non-text elements, placeholder text |
| #439AA8 text on white | 3.26:1 | AA large text | Lc 59.8 | Large or bold text, headings |
| #439AA8 text on black | 6.42:1 | AA | Lc -41.9 | 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
#F1F6F7
oklch(97% 0.005 211)
-
Step 100
100
#E1ECEE
oklch(93.5% 0.012 209.8)
-
Step 200
200
#C9DEE1
oklch(88.6% 0.023 207.1)
-
Step 300
300
#A2C9CF
oklch(81% 0.042 207.8)
-
Step 400
400
#6DACB7
oklch(70.6% 0.067 209.7)
-
Step 500
500 (this color)
#439AA8
oklch(63.9% 0.085 209.6)
-
Step 600
600
#128291
oklch(55.7% 0.093 209.5)
-
Step 700
700
#006D7B
oklch(49% 0.085 210.2)
-
Step 800
800
#085964
oklch(42.6% 0.071 209.8)
-
Step 900
900
#154A52
oklch(37.9% 0.056 209.3)
-
Step 950
950
#0E2B30
oklch(27% 0.036 210.5)
#439AA8 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) | #8E95A9 | 0.082 |
| Deuteranopia (no green cones) | #7E89A8 | 0.074 |
| Tritanopia (no blue cones) | #00A19E | 0.038 |
| Achromatopsia (no color) | #8E8E8E | 0.085 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #439AA8
#439AA8
oklch(63.9% 0.085 209.6)
- #BA786D
#BA786D
oklch(63.9% 0.085 29.9)
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 #439AA8, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Cadet Blue #5F9EA0 ΔE 0.031
- Sea #3C9992 ΔE 0.034
- Teal Green #0A9396 ΔE 0.044
- Persian Green #2A9D8F ΔE 0.046
- Dull Teal #5F9E8F ΔE 0.048
- Grey Teal #5E9B8A ΔE 0.049
- Blue Green #0F9B8E ΔE 0.051
- Dusty Teal #4C9085 ΔE 0.052
Use #439AA8 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.