#439EAD
Closest named color: Cadet Blue (#5F9EA0). oklch(65.1% 0.088 210), rgb(67, 158, 173).
Aa
Black text reads best on this color (6.73:1).
About this color
#439EAD is a medium-light, moderately saturated teal or cyan. In OKLCH its lightness is 65%, its chroma 0.088 and its hue 210°. Its hue sits on the cool side of the wheel. The nearest named color is Cadet Blue (#5F9EA0), ΔE 0.029 away. Black text reads best on it, at 6.73:1.
| Hue family | Teals and cyans |
| Lightness | medium-light (65%) |
| Chroma | moderately saturated (0.088) |
| Temperature | cool |
| Nearest name | Cadet Blue (#5F9EA0) |
| Black text | 6.73:1 |
| White text | 3.11:1 |
Values
| HEX | #439EAD |
| RGB | rgb(67, 158, 173) |
| HSL | hsl(188, 44%, 47%) |
| OKLCH | oklch(65.1% 0.088 210) |
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 #439EAD | 3.11:1 | AA large text | Lc -63.4 | Content text, not long reading |
| Black text on #439EAD | 6.73:1 | AA | Lc 46.1 | Large or bold text, headings |
| #439EAD text on white | 3.11:1 | AA large text | Lc 58.0 | Large or bold text, headings |
| #439EAD text on black | 6.73:1 | AA | Lc -43.8 | 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
#F1F7F7
oklch(97.2% 0.006 197.1)
-
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
#A1C9D0
oklch(80.9% 0.043 209.4)
-
Step 400
400
#6BADB8
oklch(70.8% 0.069 209.2)
-
Step 500
500 (this color)
#439EAD
oklch(65.1% 0.088 210)
-
Step 600
600
#028292
oklch(55.6% 0.096 209.9)
-
Step 700
700
#006D7B
oklch(49% 0.085 210.2)
-
Step 800
800
#005A65
oklch(42.8% 0.074 209.1)
-
Step 900
900
#124A52
oklch(37.8% 0.057 208.9)
-
Step 950
950
#0D2B30
oklch(26.9% 0.036 210.1)
#439EAD 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) | #9199AE | 0.083 |
| Deuteranopia (no green cones) | #818DAD | 0.076 |
| Tritanopia (no blue cones) | #00A5A2 | 0.039 |
| Achromatopsia (no color) | #929292 | 0.089 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #439EAD
#439EAD
oklch(65.1% 0.088 210)
- #BF7B6F
#BF7B6F
oklch(65.1% 0.088 30.5)
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 #439EAD, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Cadet Blue #5F9EA0 ΔE 0.029
- Sea #3C9992 ΔE 0.041
- Dull Teal #5F9E8F ΔE 0.048
- Persian Green #2A9D8F ΔE 0.050
- Grey Teal #5E9B8A ΔE 0.052
- Greyblue #77A1B5 ΔE 0.054
- Teal Green #0A9396 ΔE 0.054
- Turquoise Blue #06B1C4 ΔE 0.055
Use #439EAD 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.