#4397AB
Closest named color: Cadet Blue (#5F9EA0). oklch(63.3% 0.086 215.9), rgb(67, 151, 171).
Aa
Black text reads best on this color (6.25:1).
About this color
#4397AB is a medium-light, moderately saturated teal or cyan. In OKLCH its lightness is 63%, its chroma 0.086 and its hue 216°. Its hue sits on the cool side of the wheel. The nearest named color is Cadet Blue (#5F9EA0), ΔE 0.040 away. Black text reads best on it, at 6.25:1.
| Hue family | Teals and cyans |
| Lightness | medium-light (63%) |
| Chroma | moderately saturated (0.086) |
| Temperature | cool |
| Nearest name | Cadet Blue (#5F9EA0) |
| Black text | 6.25:1 |
| White text | 3.35:1 |
Values
| HEX | #4397AB |
| RGB | rgb(67, 151, 171) |
| HSL | hsl(192, 44%, 47%) |
| OKLCH | oklch(63.3% 0.086 215.9) |
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 #4397AB | 3.35:1 | AA large text | Lc -66.3 | Content text, not long reading |
| Black text on #4397AB | 6.25:1 | AA | Lc 43.3 | Non-text elements, placeholder text |
| #4397AB text on white | 3.35:1 | AA large text | Lc 60.8 | Content text, not long reading |
| #4397AB text on black | 6.25:1 | AA | Lc -40.9 | 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
#E1ECEF
oklch(93.6% 0.012 215.8)
-
Step 200
200
#C9DDE3
oklch(88.4% 0.023 217.7)
-
Step 300
300
#A3C8D2
oklch(80.9% 0.042 216)
-
Step 400
400
#6EACBB
oklch(70.8% 0.067 214.7)
-
Step 500
500 (this color)
#4397AB
oklch(63.3% 0.086 215.9)
-
Step 600
600
#178096
oklch(55.5% 0.093 216.4)
-
Step 700
700
#026C80
oklch(49% 0.087 216.5)
-
Step 800
800
#0C5868
oklch(42.6% 0.072 216.6)
-
Step 900
900
#164954
oklch(37.7% 0.056 214.9)
-
Step 950
950
#0F2B31
oklch(27% 0.035 213.8)
#4397AB 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) | #8993AC | 0.076 |
| Deuteranopia (no green cones) | #7A87AB | 0.069 |
| Tritanopia (no blue cones) | #009E9D | 0.043 |
| Achromatopsia (no color) | #8C8C8C | 0.086 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #4397AB
#4397AB
oklch(63.3% 0.086 215.9)
- #B87766
#B87766
oklch(63.3% 0.086 35.4)
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 #4397AB, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Cadet Blue #5F9EA0 ΔE 0.040
- Sea #3C9992 ΔE 0.042
- Teal Green #0A9396 ΔE 0.045
- Dusty Blue #5A86AD ΔE 0.052
- Blue NCS #118AB2 ΔE 0.053
- Blue Grey #758DA3 ΔE 0.053
- Faded Blue #658CBB ΔE 0.055
- Persian Green #2A9D8F ΔE 0.055
Use #4397AB 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.