#218388
Closest named color: Teal (#008080). oklch(55.9% 0.086 200.1), rgb(33, 131, 136).
Aa
Black text reads best on this color (4.66:1).
About this color
#218388 is a medium-dark, moderately saturated teal or cyan. In OKLCH its lightness is 56%, its chroma 0.086 and its hue 200°. Its hue sits on the cool side of the wheel. The nearest named color is Teal (#008080), ΔE 0.019 away. Black text reads best on it, at 4.66:1.
| Hue family | Teals and cyans |
| Lightness | medium-dark (56%) |
| Chroma | moderately saturated (0.086) |
| Temperature | cool |
| Nearest name | Teal (#008080) |
| Black text | 4.66:1 |
| White text | 4.49:1 |
Values
| HEX | #218388 |
| RGB | rgb(33, 131, 136) |
| HSL | hsl(183, 61%, 33%) |
| OKLCH | oklch(55.9% 0.086 200.1) |
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 #218388 | 4.49:1 | AA large text | Lc -76.4 | Fine for body text |
| Black text on #218388 | 4.66:1 | AA | Lc 33.2 | Non-text elements, placeholder text |
| #218388 text on white | 4.49:1 | AA large text | Lc 70.9 | Content text, not long reading |
| #218388 text on black | 4.66:1 | AA | Lc -30.8 | 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 600.
-
Step 50
50
#F2F6F7
oklch(97% 0.004 214.3)
-
Step 100
100
#E2ECED
oklch(93.6% 0.011 204.1)
-
Step 200
200
#CADEDF
oklch(88.6% 0.021 200.4)
-
Step 300
300
#A4C9CA
oklch(80.9% 0.039 198.4)
-
Step 400
400
#71ADB0
oklch(70.8% 0.062 199.9)
-
Step 500
500
#47989C
oklch(63.1% 0.079 199.7)
-
Step 600
600 (this color)
#218388
oklch(55.9% 0.086 200.1)
-
Step 700
700
#0E6E73
oklch(49.1% 0.08 200.6)
-
Step 800
800
#135A5D
oklch(42.8% 0.066 199.3)
-
Step 900
900
#194A4C
oklch(37.7% 0.052 199)
-
Step 950
950
#102B2D
oklch(26.9% 0.033 201.9)
#218388 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) | #797D88 | 0.088 |
| Deuteranopia (no green cones) | #6A7288 | 0.081 |
| Tritanopia (no blue cones) | #008884 | 0.020 |
| Achromatopsia (no color) | #777777 | 0.087 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #218388
#218388
oklch(55.9% 0.086 200.1)
- #A05F5F
#A05F5F
oklch(55.8% 0.085 20.1)
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 #218388, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Teal #008080 ΔE 0.019
- Dark Cyan #008B8B ΔE 0.023
- Teal Blue #01889F ΔE 0.035
- Ocean #017B92 ΔE 0.035
- Bluegreen #017A79 ΔE 0.036
- Deep Aqua #08787F ΔE 0.037
- Teal Green #0A9396 ΔE 0.047
- Cerulean #457B9D ΔE 0.054
Use #218388 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.