#45A1BB
Closest named color: Cadet Blue (#5F9EA0). oklch(66.4% 0.094 219.5), rgb(69, 161, 187).
Aa
Black text reads best on this color (7.06:1).
About this color
#45A1BB is a medium-light, moderately saturated teal or cyan. In OKLCH its lightness is 66%, its chroma 0.094 and its hue 219°. Its hue sits on the cool side of the wheel. The nearest named color is Cadet Blue (#5F9EA0), ΔE 0.042 away. Black text reads best on it, at 7.06:1.
| Hue family | Teals and cyans |
| Lightness | medium-light (66%) |
| Chroma | moderately saturated (0.094) |
| Temperature | cool |
| Nearest name | Cadet Blue (#5F9EA0) |
| Black text | 7.06:1 |
| White text | 2.97:1 |
Values
| HEX | #45A1BB |
| RGB | rgb(69, 161, 187) |
| HSL | hsl(193, 46%, 50%) |
| OKLCH | oklch(66.4% 0.094 219.5) |
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 #45A1BB | 2.97:1 | Fails | Lc -61.4 | Content text, not long reading |
| Black text on #45A1BB | 7.06:1 | AAA | Lc 48.0 | Large or bold text, headings |
| #45A1BB text on white | 2.97:1 | Fails | Lc 56.0 | Large or bold text, headings |
| #45A1BB text on black | 7.06:1 | AAA | Lc -45.7 | 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 500.
-
Step 50
50
#F1F6F8
oklch(97% 0.006 223.5)
-
Step 100
100
#E1ECF0
oklch(93.6% 0.013 221.4)
-
Step 200
200
#C7DEE5
oklch(88.6% 0.026 218)
-
Step 300
300
#A0C8D5
oklch(80.8% 0.046 219.6)
-
Step 400
400
#69ACC0
oklch(70.7% 0.074 219)
-
Step 500
500 (this color)
#45A1BB
oklch(66.4% 0.094 219.5)
-
Step 600
600
#00809C
oklch(55.5% 0.101 220.3)
-
Step 700
700
#006C83
oklch(49.1% 0.089 219.3)
-
Step 800
800
#00586C
oklch(42.6% 0.078 220.2)
-
Step 900
900
#104958
oklch(37.7% 0.061 219.8)
-
Step 950
950
#0C2B33
oklch(27% 0.039 217.8)
#45A1BB 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) | #919DBC | 0.080 |
| Deuteranopia (no green cones) | #8090BB | 0.072 |
| Tritanopia (no blue cones) | #00AAA9 | 0.050 |
| Achromatopsia (no color) | #969696 | 0.095 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #45A1BB
#45A1BB
oklch(66.4% 0.094 219.5)
- #C57F67
#C57F67
oklch(66.4% 0.094 39.7)
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 #45A1BB, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Cadet Blue #5F9EA0 ΔE 0.042
- Turquoise Blue #06B1C4 ΔE 0.045
- Greyblue #77A1B5 ΔE 0.047
- Sea #3C9992 ΔE 0.062
- Faded Blue #658CBB ΔE 0.063
- Light Sea Green #20B2AA ΔE 0.064
- Dull Teal #5F9E8F ΔE 0.065
- Bluegrey #85A3B2 ΔE 0.065
Use #45A1BB 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.