#4091A3
Closest named color: Teal Green (#0A9396). oklch(61.4% 0.083 214.6), rgb(64, 145, 163).
Aa
Black text reads best on this color (5.79:1).
About this color
#4091A3 is a medium-dark, moderately saturated teal or cyan. In OKLCH its lightness is 61%, its chroma 0.083 and its hue 215°. Its hue sits on the cool side of the wheel. The nearest named color is Teal Green (#0A9396), ΔE 0.035 away. Black text reads best on it, at 5.79:1.
| Hue family | Teals and cyans |
| Lightness | medium-dark (61%) |
| Chroma | moderately saturated (0.083) |
| Temperature | cool |
| Nearest name | Teal Green (#0A9396) |
| Black text | 5.79:1 |
| White text | 3.62:1 |
Values
| HEX | #4091A3 |
| RGB | rgb(64, 145, 163) |
| HSL | hsl(191, 44%, 45%) |
| OKLCH | oklch(61.4% 0.083 214.6) |
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 #4091A3 | 3.62:1 | AA large text | Lc -69.1 | Content text, not long reading |
| Black text on #4091A3 | 5.79:1 | AA | Lc 40.5 | Non-text elements, placeholder text |
| #4091A3 text on white | 3.62:1 | AA large text | Lc 63.6 | Content text, not long reading |
| #4091A3 text on black | 5.79:1 | AA | Lc -38.1 | 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 500.
-
Step 50
50
#F2F6F8
oklch(97.1% 0.005 228.8)
-
Step 100
100
#E2ECEF
oklch(93.6% 0.011 217.5)
-
Step 200
200
#C9DDE2
oklch(88.4% 0.022 214.4)
-
Step 300
300
#A4C8D1
oklch(81% 0.04 214.6)
-
Step 400
400
#70ABBA
oklch(70.6% 0.065 215.5)
-
Step 500
500 (this color)
#4091A3
oklch(61.4% 0.083 214.6)
-
Step 600
600
#1F8094
oklch(55.5% 0.09 215.3)
-
Step 700
700
#0D6C7E
oklch(49% 0.083 215.1)
-
Step 800
800
#125866
oklch(42.6% 0.069 214.8)
-
Step 900
900
#194953
oklch(37.8% 0.053 213.9)
-
Step 950
950
#102B31
oklch(27.1% 0.034 214.3)
#4091A3 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) | #848DA4 | 0.074 |
| Deuteranopia (no green cones) | #7582A3 | 0.067 |
| Tritanopia (no blue cones) | #009897 | 0.040 |
| Achromatopsia (no color) | #868686 | 0.083 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #4091A3
#4091A3
oklch(61.4% 0.083 214.6)
- #B07263
#B07263
oklch(61.4% 0.082 34.3)
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 #4091A3, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Teal Green #0A9396 ΔE 0.035
- Sea #3C9992 ΔE 0.041
- Teal Blue #01889F ΔE 0.042
- Blue NCS #118AB2 ΔE 0.043
- Dusty Blue #5A86AD ΔE 0.045
- Dusty Teal #4C9085 ΔE 0.045
- Off Blue #5684AE ΔE 0.049
- Dark Cyan #008B8B ΔE 0.051
Use #4091A3 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.