#45C5B6
Closest named color: Topaz (#13BBAF). oklch(75% 0.113 184.1), rgb(69, 197, 182).
Aa
Black text reads best on this color (9.91:1).
About this color
#45C5B6 is a medium-light, moderately saturated teal or cyan. In OKLCH its lightness is 75%, its chroma 0.113 and its hue 184°. Its hue sits on the cool side of the wheel. The nearest named color is Topaz (#13BBAF), ΔE 0.037 away. Black text reads best on it, at 9.91:1.
| Hue family | Teals and cyans |
| Lightness | medium-light (75%) |
| Chroma | moderately saturated (0.113) |
| Temperature | cool |
| Nearest name | Topaz (#13BBAF) |
| Black text | 9.91:1 |
| White text | 2.11:1 |
Values
| HEX | #45C5B6 |
| RGB | rgb(69, 197, 182) |
| HSL | hsl(173, 52%, 52%) |
| OKLCH | oklch(75% 0.113 184.1) |
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 #45C5B6 | 2.11:1 | Fails | Lc -45.8 | Large or bold text, headings |
| Black text on #45C5B6 | 9.91:1 | AAA | Lc 62.8 | Content text, not long reading |
| #45C5B6 text on white | 2.11:1 | Fails | Lc 41.2 | Non-text elements, placeholder text |
| #45C5B6 text on black | 9.91:1 | AAA | Lc -61.1 | Content text, not long reading |
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
#EFF8F6
oklch(97.2% 0.01 181.4)
-
Step 100
100
#DCEFEB
oklch(93.7% 0.021 181.9)
-
Step 200
200
#BDE2DC
oklch(88.5% 0.04 184.6)
-
Step 300
300
#8CD0C6
oklch(80.9% 0.07 184.4)
-
Step 400
400 (this color)
#45C5B6
oklch(75% 0.113 184.1)
-
Step 500
500
#009F91
oklch(63.1% 0.112 184)
-
Step 600
600
#00867A
oklch(55.7% 0.099 183.9)
-
Step 700
700
#007066
oklch(49% 0.087 184.2)
-
Step 800
800
#005C54
oklch(42.7% 0.075 184.7)
-
Step 900
900
#004D46
oklch(37.8% 0.067 184.5)
-
Step 950
950
#002E29
oklch(27.1% 0.048 183.6)
#45C5B6 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) | #BCBAB6 | 0.121 |
| Deuteranopia (no green cones) | #A9ACB8 | 0.115 |
| Tritanopia (no blue cones) | #00C9C0 | 0.021 |
| Achromatopsia (no color) | #B2B2B2 | 0.114 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #45C5B6
#45C5B6
oklch(75% 0.113 184.1)
- #EA8FA5
#EA8FA5
oklch(75% 0.113 4.5)
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 #45C5B6, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Topaz #13BBAF ΔE 0.037
- Dark Turquoise #00CED1 ΔE 0.039
- Medium Turquoise #48D1CC ΔE 0.040
- Medium Aquamarine #66CDAA ΔE 0.040
- Pale Teal #82CBB2 ΔE 0.054
- Seafoam Blue #78D1B6 ΔE 0.055
- Light Sea Green #20B2AA ΔE 0.059
- Greeny Blue #42B395 ΔE 0.060
Use #45C5B6 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.