#40A1C0
Closest named color: Turquoise Blue (#06B1C4). oklch(66.5% 0.1 222.6), rgb(64, 161, 192).
Aa
Black text reads best on this color (7.07:1).
About this color
#40A1C0 is a medium-light, moderately saturated teal or cyan. In OKLCH its lightness is 66%, its chroma 0.100 and its hue 223°. Its hue sits on the cool side of the wheel. The nearest named color is Turquoise Blue (#06B1C4), ΔE 0.046 away. Black text reads best on it, at 7.07:1.
| Hue family | Teals and cyans |
| Lightness | medium-light (66%) |
| Chroma | moderately saturated (0.100) |
| Temperature | cool |
| Nearest name | Turquoise Blue (#06B1C4) |
| Black text | 7.07:1 |
| White text | 2.96:1 |
Values
| HEX | #40A1C0 |
| RGB | rgb(64, 161, 192) |
| HSL | hsl(195, 50%, 50%) |
| OKLCH | oklch(66.5% 0.1 222.6) |
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 #40A1C0 | 2.96:1 | Fails | Lc -61.3 | Content text, not long reading |
| Black text on #40A1C0 | 7.07:1 | AAA | Lc 48.1 | Large or bold text, headings |
| #40A1C0 text on white | 2.96:1 | Fails | Lc 56.0 | Large or bold text, headings |
| #40A1C0 text on black | 7.07:1 | AAA | Lc -45.8 | Large or bold text, headings |
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
#F1F6F9
oklch(97% 0.007 233.6)
-
Step 100
100
#E0ECF1
oklch(93.6% 0.015 224.5)
-
Step 200
200
#C7DEE6
oklch(88.6% 0.027 220.7)
-
Step 300
300
#9FC8D8
oklch(80.9% 0.049 223.7)
-
Step 400
400
#67ACC4
oklch(70.8% 0.078 222.4)
-
Step 500
500 (this color)
#40A1C0
oklch(66.5% 0.1 222.6)
-
Step 600
600
#00809F
oklch(55.6% 0.103 222.6)
-
Step 700
700
#006B86
oklch(49% 0.091 223.1)
-
Step 800
800
#00586E
oklch(42.7% 0.079 222.3)
-
Step 900
900
#0B495B
oklch(37.8% 0.066 223)
-
Step 950
950
#0A2B35
oklch(27% 0.042 221.8)
#40A1C0 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) | #8F9DC2 | 0.080 |
| Deuteranopia (no green cones) | #7D90C0 | 0.071 |
| Tritanopia (no blue cones) | #00ABAB | 0.054 |
| Achromatopsia (no color) | #969696 | 0.100 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #40A1C0
#40A1C0
oklch(66.5% 0.1 222.6)
- #C77F61
#C77F61
oklch(66.5% 0.099 43.3)
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 #40A1C0, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Turquoise Blue #06B1C4 ΔE 0.046
- Cadet Blue #5F9EA0 ΔE 0.049
- Greyblue #77A1B5 ΔE 0.051
- Faded Blue #658CBB ΔE 0.062
- Sea #3C9992 ΔE 0.069
- Light Sea Green #20B2AA ΔE 0.069
- Bluegrey #85A3B2 ΔE 0.069
- Silver Lake Blue #778DA9 ΔE 0.070
Use #40A1C0 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.