#216551
Closest named color: Dark Green Blue (#1F6357). oklch(45.8% 0.076 170), rgb(33, 101, 81).
Aa
White text reads best on this color (6.89:1).
About this color
#216551 is a medium-dark, moderately saturated teal or cyan. In OKLCH its lightness is 46%, its chroma 0.076 and its hue 170°. Its hue sits on the cool side of the wheel. The nearest named color is Dark Green Blue (#1F6357), ΔE 0.013 away. White text reads best on it, at 6.89:1.
| Hue family | Teals and cyans |
| Lightness | medium-dark (46%) |
| Chroma | moderately saturated (0.076) |
| Temperature | cool |
| Nearest name | Dark Green Blue (#1F6357) |
| Black text | 3.04:1 |
| White text | 6.89:1 |
Values
| HEX | #216551 |
| RGB | rgb(33, 101, 81) |
| HSL | hsl(162, 51%, 26%) |
| OKLCH | oklch(45.8% 0.076 170) |
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 #216551 | 6.89:1 | AA | Lc -88.6 | Fine for body text |
| Black text on #216551 | 3.04:1 | AA large text | Lc 20.4 | Dividers and decoration only |
| #216551 text on white | 6.89:1 | AA | Lc 83.6 | Fine for body text |
| #216551 text on black | 3.04:1 | AA large text | Lc -18.4 | Dividers and decoration only |
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 800.
-
Step 50
50
#F2F7F5
oklch(97.2% 0.006 170.4)
-
Step 100
100
#E2EDE8
oklch(93.6% 0.013 167.2)
-
Step 200
200
#CADFD7
oklch(88.6% 0.025 170.9)
-
Step 300
300
#A5CABC
oklch(80.8% 0.044 170.2)
-
Step 400
400
#73AF9A
oklch(70.7% 0.07 170.2)
-
Step 500
500
#499B81
oklch(63.1% 0.09 170.1)
-
Step 600
600
#24866A
oklch(55.7% 0.099 169.4)
-
Step 700
700
#137159
oklch(49.1% 0.091 170.4)
-
Step 800
800 (this color)
#216551
oklch(45.8% 0.076 170)
-
Step 900
900
#1B4C3D
oklch(37.8% 0.059 169.9)
-
Step 950
950
#112C24
oklch(26.9% 0.037 171.8)
#216551 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) | #625E50 | 0.077 |
| Deuteranopia (no green cones) | #595752 | 0.075 |
| Tritanopia (no blue cones) | #00665F | 0.023 |
| Achromatopsia (no color) | #5A5A5A | 0.076 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #216551
#216551
oklch(45.8% 0.076 170)
- #77455D
#77455D
oklch(45.7% 0.076 350.3)
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 #216551, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Green Blue #1F6357 ΔE 0.013
- Dark Aqua #05696B ΔE 0.039
- Pine #2B5D34 ΔE 0.042
- Spruce #0A5F38 ΔE 0.043
- Petrol #005F6A ΔE 0.052
- Dark Aquamarine #017371 ΔE 0.055
- Deep Turquoise #017374 ΔE 0.059
- Deep Teal #00555A ΔE 0.063
Use #216551 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.