#409AB1
Closest named color: Cadet Blue (#5F9EA0). oklch(64.2% 0.091 217.5), rgb(64, 154, 177).
Aa
Black text reads best on this color (6.47:1).
About this color
#409AB1 is a medium-light, moderately saturated teal or cyan. In OKLCH its lightness is 64%, its chroma 0.091 and its hue 218°. Its hue sits on the cool side of the wheel. The nearest named color is Cadet Blue (#5F9EA0), ΔE 0.040 away. Black text reads best on it, at 6.47:1.
| Hue family | Teals and cyans |
| Lightness | medium-light (64%) |
| Chroma | moderately saturated (0.091) |
| Temperature | cool |
| Nearest name | Cadet Blue (#5F9EA0) |
| Black text | 6.47:1 |
| White text | 3.24:1 |
Values
| HEX | #409AB1 |
| RGB | rgb(64, 154, 177) |
| HSL | hsl(192, 47%, 47%) |
| OKLCH | oklch(64.2% 0.091 217.5) |
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 #409AB1 | 3.24:1 | AA large text | Lc -64.9 | Content text, not long reading |
| Black text on #409AB1 | 6.47:1 | AA | Lc 44.6 | Non-text elements, placeholder text |
| #409AB1 text on white | 3.24:1 | AA large text | Lc 59.5 | Large or bold text, headings |
| #409AB1 text on black | 6.47:1 | AA | Lc -42.3 | 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
#F1F6F8
oklch(97% 0.006 223.5)
-
Step 100
100
#E1ECEF
oklch(93.6% 0.012 215.8)
-
Step 200
200
#C8DEE4
oklch(88.6% 0.025 215.9)
-
Step 300
300
#A1C8D4
oklch(80.9% 0.045 218.5)
-
Step 400
400
#6BACBE
oklch(70.7% 0.071 217.4)
-
Step 500
500 (this color)
#409AB1
oklch(64.2% 0.091 217.5)
-
Step 600
600
#048199
oklch(55.7% 0.099 217.1)
-
Step 700
700
#006C81
oklch(49% 0.088 217.4)
-
Step 800
800
#01596A
oklch(42.8% 0.076 216.6)
-
Step 900
900
#124956
oklch(37.7% 0.059 217.2)
-
Step 950
950
#0D2B33
oklch(27.1% 0.038 218.3)
#409AB1 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) | #8B96B2 | 0.079 |
| Deuteranopia (no green cones) | #7B8AB1 | 0.071 |
| Tritanopia (no blue cones) | #00A2A1 | 0.045 |
| Achromatopsia (no color) | #8F8F8F | 0.091 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #409AB1
#409AB1
oklch(64.2% 0.091 217.5)
- #BD7964
#BD7964
oklch(64.3% 0.091 37.9)
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 #409AB1, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Cadet Blue #5F9EA0 ΔE 0.040
- Sea #3C9992 ΔE 0.048
- Teal Green #0A9396 ΔE 0.052
- Faded Blue #658CBB ΔE 0.056
- Blue NCS #118AB2 ΔE 0.057
- Blue Grey #758DA3 ΔE 0.058
- Dusty Blue #5A86AD ΔE 0.058
- Persian Green #2A9D8F ΔE 0.059
Use #409AB1 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.