#45C1BB
Closest named color: Topaz (#13BBAF). oklch(74.2% 0.108 190.5), rgb(69, 193, 187).
Aa
Black text reads best on this color (9.59:1).
About this color
#45C1BB is a medium-light, moderately saturated teal or cyan. In OKLCH its lightness is 74%, its chroma 0.108 and its hue 191°. Its hue sits on the cool side of the wheel. The nearest named color is Topaz (#13BBAF), ΔE 0.032 away. Black text reads best on it, at 9.59:1.
| Hue family | Teals and cyans |
| Lightness | medium-light (74%) |
| Chroma | moderately saturated (0.108) |
| Temperature | cool |
| Nearest name | Topaz (#13BBAF) |
| Black text | 9.59:1 |
| White text | 2.18:1 |
Values
| HEX | #45C1BB |
| RGB | rgb(69, 193, 187) |
| HSL | hsl(177, 50%, 51%) |
| OKLCH | oklch(74.2% 0.108 190.5) |
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 #45C1BB | 2.18:1 | Fails | Lc -47.4 | Large or bold text, headings |
| Black text on #45C1BB | 9.59:1 | AAA | Lc 61.2 | Content text, not long reading |
| #45C1BB text on white | 2.18:1 | Fails | Lc 42.7 | Non-text elements, placeholder text |
| #45C1BB text on black | 9.59:1 | AAA | Lc -59.5 | 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
#EFF7F7
oklch(97% 0.008 197)
-
Step 100
100
#DCEEED
oklch(93.6% 0.019 192.8)
-
Step 200
200
#BEE2DF
oklch(88.6% 0.038 190.3)
-
Step 300
300
#8DCFCB
oklch(80.9% 0.067 191.1)
-
Step 400
400 (this color)
#45C1BB
oklch(74.2% 0.108 190.5)
-
Step 500
500
#009E99
oklch(63.1% 0.109 190.8)
-
Step 600
600
#008580
oklch(55.7% 0.096 190.1)
-
Step 700
700
#00706C
oklch(49.2% 0.085 190.4)
-
Step 800
800
#005C58
oklch(42.8% 0.074 189.6)
-
Step 900
900
#004C49
oklch(37.6% 0.065 190.2)
-
Step 950
950
#002D2C
oklch(26.9% 0.046 192.5)
#45C1BB 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) | #B6B7BB | 0.114 |
| Deuteranopia (no green cones) | #A3A9BC | 0.108 |
| Tritanopia (no blue cones) | #00C6BF | 0.021 |
| Achromatopsia (no color) | #AFAFAF | 0.109 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #45C1BB
#45C1BB
oklch(74.2% 0.108 190.5)
- #E68E9B
#E68E9B
oklch(74.1% 0.108 10.5)
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 #45C1BB, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Topaz #13BBAF ΔE 0.032
- Dark Turquoise #00CED1 ΔE 0.040
- Medium Turquoise #48D1CC ΔE 0.046
- Light Sea Green #20B2AA ΔE 0.051
- Medium Aquamarine #66CDAA ΔE 0.054
- Turquoise Blue #06B1C4 ΔE 0.059
- Greeny Blue #42B395 ΔE 0.059
- Pale Teal #82CBB2 ΔE 0.062
Use #45C1BB 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.