#439CAC
Closest named color: Cadet Blue (#5F9EA0). oklch(64.5% 0.087 211.2), rgb(67, 156, 172).
Aa
Black text reads best on this color (6.58:1).
About this color
#439CAC is a medium-light, moderately saturated teal or cyan. In OKLCH its lightness is 65%, its chroma 0.087 and its hue 211°. Its hue sits on the cool side of the wheel. The nearest named color is Cadet Blue (#5F9EA0), ΔE 0.030 away. Black text reads best on it, at 6.58:1.
| Hue family | Teals and cyans |
| Lightness | medium-light (65%) |
| Chroma | moderately saturated (0.087) |
| Temperature | cool |
| Nearest name | Cadet Blue (#5F9EA0) |
| Black text | 6.58:1 |
| White text | 3.18:1 |
Values
| HEX | #439CAC |
| RGB | rgb(67, 156, 172) |
| HSL | hsl(189, 44%, 47%) |
| OKLCH | oklch(64.5% 0.087 211.2) |
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 #439CAC | 3.18:1 | AA large text | Lc -64.2 | Content text, not long reading |
| Black text on #439CAC | 6.58:1 | AA | Lc 45.3 | Large or bold text, headings |
| #439CAC text on white | 3.18:1 | AA large text | Lc 58.8 | Large or bold text, headings |
| #439CAC text on black | 6.58:1 | AA | Lc -42.9 | 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
#F1F6F8
oklch(97% 0.006 223.5)
-
Step 100
100
#E1ECEE
oklch(93.5% 0.012 209.8)
-
Step 200
200
#C8DEE2
oklch(88.5% 0.024 209.8)
-
Step 300
300
#A2C9D0
oklch(81% 0.042 209.7)
-
Step 400
400
#6CACB9
oklch(70.6% 0.068 211.9)
-
Step 500
500 (this color)
#439CAC
oklch(64.5% 0.087 211.2)
-
Step 600
600
#0A8293
oklch(55.7% 0.095 211)
-
Step 700
700
#006D7C
oklch(49% 0.085 211.2)
-
Step 800
800
#045966
oklch(42.6% 0.073 212)
-
Step 900
900
#134A53
oklch(37.8% 0.057 210.7)
-
Step 950
950
#0E2B30
oklch(27% 0.036 210.5)
#439CAC 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) | #8F97AD | 0.082 |
| Deuteranopia (no green cones) | #7F8BAC | 0.074 |
| Tritanopia (no blue cones) | #00A3A1 | 0.039 |
| Achromatopsia (no color) | #909090 | 0.088 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #439CAC
#439CAC
oklch(64.5% 0.087 211.2)
- #BD7A6D
#BD7A6D
oklch(64.6% 0.087 31.5)
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 #439CAC, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Cadet Blue #5F9EA0 ΔE 0.030
- Sea #3C9992 ΔE 0.040
- Dull Teal #5F9E8F ΔE 0.049
- Persian Green #2A9D8F ΔE 0.050
- Teal Green #0A9396 ΔE 0.051
- Grey Teal #5E9B8A ΔE 0.052
- Blue Green #0F9B8E ΔE 0.055
- Greyblue #77A1B5 ΔE 0.056
Use #439CAC 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.