#3888AA
Closest named color: Blue NCS (#118AB2). oklch(59.2% 0.093 229.4), rgb(56, 136, 170).
Aa
Black text reads best on this color (5.27:1).
About this color
#3888AA is a medium-dark, moderately saturated teal or cyan. In OKLCH its lightness is 59%, its chroma 0.093 and its hue 229°. Its hue sits on the cool side of the wheel. The nearest named color is Blue NCS (#118AB2), ΔE 0.019 away. Black text reads best on it, at 5.27:1.
| Hue family | Teals and cyans |
| Lightness | medium-dark (59%) |
| Chroma | moderately saturated (0.093) |
| Temperature | cool |
| Nearest name | Blue NCS (#118AB2) |
| Black text | 5.27:1 |
| White text | 3.98:1 |
Values
| HEX | #3888AA |
| RGB | rgb(56, 136, 170) |
| HSL | hsl(198, 50%, 44%) |
| OKLCH | oklch(59.2% 0.093 229.4) |
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 #3888AA | 3.98:1 | AA large text | Lc -72.4 | Content text, not long reading |
| Black text on #3888AA | 5.27:1 | AA | Lc 37.2 | Non-text elements, placeholder text |
| #3888AA text on white | 3.98:1 | AA large text | Lc 66.9 | Content text, not long reading |
| #3888AA text on black | 5.27:1 | AA | Lc -34.7 | 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 600.
-
Step 50
50
#F2F6F8
oklch(97.1% 0.005 228.8)
-
Step 100
100
#E2ECF0
oklch(93.7% 0.012 223.5)
-
Step 200
200
#CADCE6
oklch(88.4% 0.024 231.9)
-
Step 300
300
#A6C6D7
oklch(80.9% 0.042 231.1)
-
Step 400
400
#74A9C2
oklch(70.7% 0.067 229.1)
-
Step 500
500
#4D93B3
oklch(63.1% 0.085 229.9)
-
Step 600
600 (this color)
#3888AA
oklch(59.2% 0.093 229.4)
-
Step 700
700
#1D6988
oklch(49% 0.087 230.1)
-
Step 800
800
#1B566E
oklch(42.7% 0.071 229.2)
-
Step 900
900
#1D4759
oklch(37.7% 0.056 229)
-
Step 950
950
#122A34
oklch(27.1% 0.035 227.4)
#3888AA 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) | #7786AC | 0.066 |
| Deuteranopia (no green cones) | #677AAA | 0.058 |
| Tritanopia (no blue cones) | #009293 | 0.057 |
| Achromatopsia (no color) | #7F7F7F | 0.093 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #3888AA
#3888AA
oklch(59.2% 0.093 229.4)
- #AA6D4A
#AA6D4A
oklch(59.2% 0.092 50.1)
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 #3888AA, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Blue NCS #118AB2 ΔE 0.019
- Steel Blue #4682B4 ΔE 0.028
- Off Blue #5684AE ΔE 0.030
- Teal Blue #01889F ΔE 0.030
- Cool Blue #4984B8 ΔE 0.031
- Dusty Blue #5A86AD ΔE 0.032
- Cerulean #457B9D ΔE 0.038
- Stormy Blue #507B9C ΔE 0.040
Use #3888AA 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.