#5B997E
Closest named color: Grey Teal (#5E9B8A). oklch(63.3% 0.077 164.5), rgb(91, 153, 126).
Aa
Black text reads best on this color (6.30:1).
About this color
#5B997E is a medium-light, moderately saturated green. In OKLCH its lightness is 63%, its chroma 0.077 and its hue 165°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Grey Teal (#5E9B8A), ΔE 0.018 away. Black text reads best on it, at 6.30:1.
| Hue family | Greens |
| Lightness | medium-light (63%) |
| Chroma | moderately saturated (0.077) |
| Temperature | in between |
| Nearest name | Grey Teal (#5E9B8A) |
| Black text | 6.30:1 |
| White text | 3.33:1 |
Values
| HEX | #5B997E |
| RGB | rgb(91, 153, 126) |
| HSL | hsl(154, 25%, 48%) |
| OKLCH | oklch(63.3% 0.077 164.5) |
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 #5B997E | 3.33:1 | AA large text | Lc -66.1 | Content text, not long reading |
| Black text on #5B997E | 6.30:1 | AA | Lc 43.4 | Non-text elements, placeholder text |
| #5B997E text on white | 3.33:1 | AA large text | Lc 60.6 | Content text, not long reading |
| #5B997E text on black | 6.30:1 | AA | Lc -41.1 | 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
#F2F6F4
oklch(97% 0.005 165)
-
Step 100
100
#E4ECE8
oklch(93.6% 0.01 164.9)
-
Step 200
200
#CDDED5
oklch(88.5% 0.022 163)
-
Step 300
300
#ABC9BA
oklch(80.9% 0.038 163.8)
-
Step 400
400
#7DAD97
oklch(70.7% 0.061 164.7)
-
Step 500
500 (this color)
#5B997E
oklch(63.3% 0.077 164.5)
-
Step 600
600
#3E8367
oklch(55.7% 0.083 164.7)
-
Step 700
700
#2F6F55
oklch(49.2% 0.079 164.1)
-
Step 800
800
#285A46
oklch(42.7% 0.064 165)
-
Step 900
900
#264A3B
oklch(37.7% 0.05 165.1)
-
Step 950
950
#172B22
oklch(26.9% 0.031 164)
#5B997E 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) | #97917D | 0.077 |
| Deuteranopia (no green cones) | #8D8A80 | 0.073 |
| Tritanopia (no blue cones) | #4B9991 | 0.030 |
| Achromatopsia (no color) | #8D8D8D | 0.078 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #5B997E
#5B997E
oklch(63.3% 0.077 164.5)
- #AC7795
#AC7795
oklch(63.3% 0.077 344.6)
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 #5B997E, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Grey Teal #5E9B8A ΔE 0.018
- Dull Teal #5F9E8F ΔE 0.026
- Ocean Green #3D9973 ΔE 0.033
- Green Grey #77926F ΔE 0.035
- Slate Green #658D6D ΔE 0.035
- Dusty Teal #4C9085 ΔE 0.036
- Sea #3C9992 ΔE 0.036
- Persian Green #2A9D8F ΔE 0.038
Use #5B997E 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.