#43A4CF
Closest named color: Turquoise Blue (#06B1C4). oklch(67.9% 0.11 230.7), rgb(67, 164, 207).
Aa
Black text reads best on this color (7.44:1).
About this color
#43A4CF is a medium-light, moderately saturated blue. In OKLCH its lightness is 68%, its chroma 0.110 and its hue 231°. Its hue sits on the cool side of the wheel. The nearest named color is Turquoise Blue (#06B1C4), ΔE 0.048 away. Black text reads best on it, at 7.44:1.
| Hue family | Blues |
| Lightness | medium-light (68%) |
| Chroma | moderately saturated (0.110) |
| Temperature | cool |
| Nearest name | Turquoise Blue (#06B1C4) |
| Black text | 7.44:1 |
| White text | 2.81:1 |
Values
| HEX | #43A4CF |
| RGB | rgb(67, 164, 207) |
| HSL | hsl(198, 59%, 54%) |
| OKLCH | oklch(67.9% 0.11 230.7) |
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 #43A4CF | 2.81:1 | Fails | Lc -59.1 | Large or bold text, headings |
| Black text on #43A4CF | 7.44:1 | AAA | Lc 50.2 | Large or bold text, headings |
| #43A4CF text on white | 2.81:1 | Fails | Lc 53.9 | Large or bold text, headings |
| #43A4CF text on black | 7.44:1 | AAA | Lc -48.0 | 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 400.
-
Step 50
50
#F0F7FB
oklch(97.2% 0.009 232.4)
-
Step 100
100
#DDEDF5
oklch(93.7% 0.02 229)
-
Step 200
200
#C1DEEE
oklch(88.4% 0.038 232)
-
Step 300
300
#93C9E5
oklch(80.8% 0.069 231.2)
-
Step 400
400 (this color)
#43A4CF
oklch(67.9% 0.11 230.7)
-
Step 500
500
#0096C7
oklch(63.1% 0.126 230.5)
-
Step 600
600
#007EA8
oklch(55.6% 0.112 230.6)
-
Step 700
700
#006A8E
oklch(49.1% 0.099 230.6)
-
Step 800
800
#005775
oklch(42.8% 0.086 230.3)
-
Step 900
900
#004862
oklch(37.7% 0.076 230.8)
-
Step 950
950
#002B3C
oklch(27.1% 0.054 230.4)
#43A4CF 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) | #8EA2D1 | 0.075 |
| Deuteranopia (no green cones) | #7B94CE | 0.064 |
| Tritanopia (no blue cones) | #00B0B2 | 0.068 |
| Achromatopsia (no color) | #9A9A9A | 0.110 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #43A4CF
#43A4CF
oklch(67.9% 0.11 230.7)
- #CE8357
#CE8357
oklch(67.9% 0.11 50.5)
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 #43A4CF, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Turquoise Blue #06B1C4 ΔE 0.048
- Greyblue #77A1B5 ΔE 0.056
- Faded Blue #658CBB ΔE 0.067
- Cadet Blue #5F9EA0 ΔE 0.068
- Chefchaouen Blue #4895EF ΔE 0.071
- Bluegrey #85A3B2 ΔE 0.072
- Cornflower Blue #6495ED ΔE 0.073
- Dark Sky Blue #448EE4 ΔE 0.076
Use #43A4CF 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.