#40756E
Closest named color: Bluegreen (#017A79). oklch(52.3% 0.058 184.7), rgb(64, 117, 110).
Aa
White text reads best on this color (5.26:1).
About this color
#40756E is a medium-dark, muted teal or cyan. In OKLCH its lightness is 52%, its chroma 0.058 and its hue 185°. Its hue sits on the cool side of the wheel. The nearest named color is Bluegreen (#017A79), ΔE 0.033 away. White text reads best on it, at 5.26:1.
| Hue family | Teals and cyans |
| Lightness | medium-dark (52%) |
| Chroma | muted (0.058) |
| Temperature | cool |
| Nearest name | Bluegreen (#017A79) |
| Black text | 3.98:1 |
| White text | 5.26:1 |
Values
| HEX | #40756E |
| RGB | rgb(64, 117, 110) |
| HSL | hsl(172, 29%, 35%) |
| OKLCH | oklch(52.3% 0.058 184.7) |
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 #40756E | 5.26:1 | AA | Lc -81.4 | Fine for body text |
| Black text on #40756E | 3.98:1 | AA large text | Lc 28.0 | Dividers and decoration only |
| #40756E text on white | 5.26:1 | AA | Lc 76.1 | Fine for body text |
| #40756E text on black | 3.98:1 | AA large text | Lc -25.7 | Dividers and decoration only |
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 700.
-
Step 50
50
#F3F6F6
oklch(97.1% 0.003 197.1)
-
Step 100
100
#E4ECEA
oklch(93.6% 0.009 179.6)
-
Step 200
200
#CEDDDA
oklch(88.5% 0.017 182.7)
-
Step 300
300
#ADC7C3
oklch(80.9% 0.029 185.4)
-
Step 400
400
#81AAA4
oklch(70.6% 0.045 185.1)
-
Step 500
500
#60958E
oklch(63.1% 0.058 185.4)
-
Step 600
600
#457F78
oklch(55.5% 0.062 185.6)
-
Step 700
700 (this color)
#40756E
oklch(52.3% 0.058 184.7)
-
Step 800
800
#2E5852
oklch(42.8% 0.048 183.8)
-
Step 900
900
#294844
oklch(37.6% 0.038 185.3)
-
Step 950
950
#192A28
oklch(26.9% 0.023 186.7)
#40756E 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) | #70706E | 0.061 |
| Deuteranopia (no green cones) | #67696F | 0.058 |
| Tritanopia (no blue cones) | #2A7773 | 0.018 |
| Achromatopsia (no color) | #6C6C6C | 0.059 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #40756E
#40756E
oklch(52.3% 0.058 184.7)
- #875C65
#875C65
oklch(52.3% 0.058 5.5)
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 #40756E, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Bluegreen #017A79 ΔE 0.033
- Dark Aquamarine #017371 ΔE 0.036
- Deep Aqua #08787F ΔE 0.036
- Deep Turquoise #017374 ΔE 0.037
- Teal #008080 ΔE 0.042
- Slate #516572 ΔE 0.054
- Dark Aqua #05696B ΔE 0.057
- Ocean #017B92 ΔE 0.058
Use #40756E 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.