#45B2B8
Closest named color: Turquoise Blue (#06B1C4). oklch(70.4% 0.098 200.3), rgb(69, 178, 184).
Aa
Black text reads best on this color (8.31:1).
About this color
#45B2B8 is a medium-light, moderately saturated teal or cyan. In OKLCH its lightness is 70%, its chroma 0.098 and its hue 200°. Its hue sits on the cool side of the wheel. The nearest named color is Turquoise Blue (#06B1C4), ΔE 0.027 away. Black text reads best on it, at 8.31:1.
| Hue family | Teals and cyans |
| Lightness | medium-light (70%) |
| Chroma | moderately saturated (0.098) |
| Temperature | cool |
| Nearest name | Turquoise Blue (#06B1C4) |
| Black text | 8.31:1 |
| White text | 2.52:1 |
Values
| HEX | #45B2B8 |
| RGB | rgb(69, 178, 184) |
| HSL | hsl(183, 45%, 50%) |
| OKLCH | oklch(70.4% 0.098 200.3) |
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 #45B2B8 | 2.52:1 | Fails | Lc -54.3 | Large or bold text, headings |
| Black text on #45B2B8 | 8.31:1 | AAA | Lc 54.8 | Large or bold text, headings |
| #45B2B8 text on white | 2.52:1 | Fails | Lc 49.2 | Large or bold text, headings |
| #45B2B8 text on black | 8.31:1 | AAA | Lc -52.7 | 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
#EFF7F8
oklch(97% 0.009 205.9)
-
Step 100
100
#DDEEEE
oklch(93.7% 0.018 196.8)
-
Step 200
200
#C0E0E2
oklch(88.4% 0.034 201.2)
-
Step 300
300
#91CDD0
oklch(80.9% 0.061 199.9)
-
Step 400
400 (this color)
#45B2B8
oklch(70.4% 0.098 200.3)
-
Step 500
500
#009CA3
oklch(63% 0.107 200.4)
-
Step 600
600
#008389
oklch(55.5% 0.094 200.5)
-
Step 700
700
#006F74
oklch(49.2% 0.084 200.3)
-
Step 800
800
#005B5F
oklch(42.8% 0.073 200)
-
Step 900
900
#004C4F
oklch(37.8% 0.064 199.4)
-
Step 950
950
#002D2F
oklch(27% 0.046 199.4)
#45B2B8 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) | #A6AAB9 | 0.101 |
| Deuteranopia (no green cones) | #949DB9 | 0.093 |
| Tritanopia (no blue cones) | #00B8B4 | 0.028 |
| Achromatopsia (no color) | #A3A3A3 | 0.099 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #45B2B8
#45B2B8
oklch(70.4% 0.098 200.3)
- #D68786
#D68786
oklch(70.5% 0.097 20.6)
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 #45B2B8, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Turquoise Blue #06B1C4 ΔE 0.027
- Light Sea Green #20B2AA ΔE 0.029
- Topaz #13BBAF ΔE 0.037
- Greeny Blue #42B395 ΔE 0.053
- Cadet Blue #5F9EA0 ΔE 0.057
- Greyblue #77A1B5 ΔE 0.060
- Bluegrey #85A3B2 ΔE 0.067
- Dull Teal #5F9E8F ΔE 0.068
Use #45B2B8 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.