#219EAD
Closest named color: Sea (#3C9992). oklch(64.2% 0.103 207.5), rgb(33, 158, 173).
Aa
Black text reads best on this color (6.55:1).
About this color
#219EAD is a medium-light, moderately saturated teal or cyan. In OKLCH its lightness is 64%, its chroma 0.103 and its hue 207°. Its hue sits on the cool side of the wheel. The nearest named color is Sea (#3C9992), ΔE 0.039 away. Black text reads best on it, at 6.55:1.
| Hue family | Teals and cyans |
| Lightness | medium-light (64%) |
| Chroma | moderately saturated (0.103) |
| Temperature | cool |
| Nearest name | Sea (#3C9992) |
| Black text | 6.55:1 |
| White text | 3.20:1 |
Values
| HEX | #219EAD |
| RGB | rgb(33, 158, 173) |
| HSL | hsl(186, 68%, 40%) |
| OKLCH | oklch(64.2% 0.103 207.5) |
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 #219EAD | 3.20:1 | AA large text | Lc -64.2 | Content text, not long reading |
| Black text on #219EAD | 6.55:1 | AA | Lc 45.3 | Large or bold text, headings |
| #219EAD text on white | 3.20:1 | AA large text | Lc 58.8 | Large or bold text, headings |
| #219EAD text on black | 6.55:1 | AA | Lc -43.0 | 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
#F1F7F8
oklch(97.2% 0.007 208.8)
-
Step 100
100
#DFEDEF
oklch(93.6% 0.015 207.1)
-
Step 200
200
#C5DFE3
oklch(88.6% 0.028 207.8)
-
Step 300
300
#9BCAD1
oklch(80.8% 0.05 207.5)
-
Step 400
400
#5EAFBB
oklch(70.7% 0.081 208)
-
Step 500
500 (this color)
#219EAD
oklch(64.2% 0.103 207.5)
-
Step 600
600
#008290
oklch(55.5% 0.095 208)
-
Step 700
700
#006E79
oklch(49.2% 0.084 206.9)
-
Step 800
800
#005A64
oklch(42.8% 0.073 207.9)
-
Step 900
900
#004B53
oklch(37.7% 0.065 207)
-
Step 950
950
#052C31
oklch(27% 0.042 207.6)
#219EAD 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) | #8F98AE | 0.099 |
| Deuteranopia (no green cones) | #7D8AAD | 0.091 |
| Tritanopia (no blue cones) | #00A5A2 | 0.031 |
| Achromatopsia (no color) | #909090 | 0.104 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #219EAD
#219EAD
oklch(64.2% 0.103 207.5)
- #C4736A
#C4736A
oklch(64.2% 0.104 27.1)
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 #219EAD, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Sea #3C9992 ΔE 0.039
- Cadet Blue #5F9EA0 ΔE 0.043
- Teal Green #0A9396 ΔE 0.044
- Persian Green #2A9D8F ΔE 0.045
- Blue Green #0F9B8E ΔE 0.048
- Turquoise Blue #06B1C4 ΔE 0.056
- Dull Teal #5F9E8F ΔE 0.057
- Grey Teal #5E9B8A ΔE 0.059
Use #219EAD 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.