#4397A5
Closest named color: Sea (#3C9992). oklch(63% 0.083 210), rgb(67, 151, 165).
Aa
Black text reads best on this color (6.20:1).
About this color
#4397A5 is a medium-light, moderately saturated teal or cyan. In OKLCH its lightness is 63%, its chroma 0.083 and its hue 210°. Its hue sits on the cool side of the wheel. The nearest named color is Sea (#3C9992), ΔE 0.033 away. Black text reads best on it, at 6.20:1.
| Hue family | Teals and cyans |
| Lightness | medium-light (63%) |
| Chroma | moderately saturated (0.083) |
| Temperature | cool |
| Nearest name | Sea (#3C9992) |
| Black text | 6.20:1 |
| White text | 3.38:1 |
Values
| HEX | #4397A5 |
| RGB | rgb(67, 151, 165) |
| HSL | hsl(189, 42%, 45%) |
| OKLCH | oklch(63% 0.083 210) |
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 #4397A5 | 3.38:1 | AA large text | Lc -66.5 | Content text, not long reading |
| Black text on #4397A5 | 6.20:1 | AA | Lc 43.0 | Non-text elements, placeholder text |
| #4397A5 text on white | 3.38:1 | AA large text | Lc 61.1 | Content text, not long reading |
| #4397A5 text on black | 6.20:1 | AA | Lc -40.6 | 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
#A3C8CF
oklch(80.8% 0.041 210.4)
-
Step 400
400
#6FACB7
oklch(70.7% 0.065 210.1)
-
Step 500
500 (this color)
#4397A5
oklch(63% 0.083 210)
-
Step 600
600
#198190
oklch(55.5% 0.09 209.9)
-
Step 700
700
#046D7B
oklch(49% 0.084 210.3)
-
Step 800
800
#0E5964
oklch(42.7% 0.069 210.2)
-
Step 900
900
#174951
oklch(37.6% 0.054 209.9)
-
Step 950
950
#0F2B30
oklch(27% 0.035 210.9)
#4397A5 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) | #8B92A6 | 0.079 |
| Deuteranopia (no green cones) | #7C87A5 | 0.072 |
| Tritanopia (no blue cones) | #009D9B | 0.037 |
| Achromatopsia (no color) | #8C8C8C | 0.084 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #4397A5
#4397A5
oklch(63% 0.083 210)
- #B6766B
#B6766B
oklch(63% 0.083 30.2)
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 #4397A5, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Sea #3C9992 ΔE 0.033
- Cadet Blue #5F9EA0 ΔE 0.036
- Teal Green #0A9396 ΔE 0.039
- Dusty Teal #4C9085 ΔE 0.046
- Persian Green #2A9D8F ΔE 0.046
- Blue Green #0F9B8E ΔE 0.049
- Grey Teal #5E9B8A ΔE 0.050
- Dull Teal #5F9E8F ΔE 0.050
Use #4397A5 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.