#43757F
Closest named color: Metallic Blue (#4F738E). oklch(53.1% 0.056 211.9), rgb(67, 117, 127).
Aa
White text reads best on this color (5.13:1).
About this color
#43757F is a medium-dark, muted teal or cyan. In OKLCH its lightness is 53%, its chroma 0.056 and its hue 212°. Its hue sits on the cool side of the wheel. The nearest named color is Metallic Blue (#4F738E), ΔE 0.031 away. White text reads best on it, at 5.13:1.
| Hue family | Teals and cyans |
| Lightness | medium-dark (53%) |
| Chroma | muted (0.056) |
| Temperature | cool |
| Nearest name | Metallic Blue (#4F738E) |
| Black text | 4.08:1 |
| White text | 5.13:1 |
Values
| HEX | #43757F |
| RGB | rgb(67, 117, 127) |
| HSL | hsl(190, 31%, 38%) |
| OKLCH | oklch(53.1% 0.056 211.9) |
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 #43757F | 5.13:1 | AA | Lc -80.7 | Fine for body text |
| Black text on #43757F | 4.08:1 | AA large text | Lc 28.8 | Dividers and decoration only |
| #43757F text on white | 5.13:1 | AA | Lc 75.3 | Fine for body text |
| #43757F text on black | 4.08:1 | AA large text | Lc -26.4 | 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 600.
-
Step 50
50
#F3F6F7
oklch(97.1% 0.003 219.5)
-
Step 100
100
#E5EBED
oklch(93.6% 0.007 219.6)
-
Step 200
200
#CFDCDE
oklch(88.5% 0.014 207.9)
-
Step 300
300
#AFC5CA
oklch(80.8% 0.025 212.9)
-
Step 400
400
#84A8AF
oklch(70.7% 0.041 210.8)
-
Step 500
500
#64929C
oklch(63.1% 0.052 212.7)
-
Step 600
600 (this color)
#43757F
oklch(53.1% 0.056 211.9)
-
Step 700
700
#3B6972
oklch(49.2% 0.052 211.6)
-
Step 800
800
#31555D
oklch(42.6% 0.043 213.5)
-
Step 900
900
#2C474C
oklch(37.8% 0.034 210.4)
-
Step 950
950
#1A292C
oklch(26.9% 0.021 211.4)
#43757F 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) | #6D7280 | 0.053 |
| Deuteranopia (no green cones) | #636A7F | 0.049 |
| Tritanopia (no blue cones) | #257978 | 0.030 |
| Achromatopsia (no color) | #6E6E6E | 0.057 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #43757F
#43757F
oklch(53.1% 0.056 211.9)
- #8A6058
#8A6058
oklch(53.1% 0.057 31.1)
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 #43757F, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Metallic Blue #4F738E ΔE 0.031
- Deep Aqua #08787F ΔE 0.035
- Bluegreen #017A79 ΔE 0.041
- Ocean #017B92 ΔE 0.041
- Teal #008080 ΔE 0.044
- Deep Turquoise #017374 ΔE 0.045
- Cerulean #457B9D ΔE 0.047
- Slate #516572 ΔE 0.047
Use #43757F 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.