#40998B
Closest named color: Sea (#3C9992). oklch(62.5% 0.088 181.4), rgb(64, 153, 139).
Aa
Black text reads best on this color (6.14:1).
About this color
#40998B is a medium-light, moderately saturated teal or cyan. In OKLCH its lightness is 63%, its chroma 0.088 and its hue 181°. Its hue sits on the cool side of the wheel. The nearest named color is Sea (#3C9992), ΔE 0.011 away. Black text reads best on it, at 6.14:1.
| Hue family | Teals and cyans |
| Lightness | medium-light (63%) |
| Chroma | moderately saturated (0.088) |
| Temperature | cool |
| Nearest name | Sea (#3C9992) |
| Black text | 6.14:1 |
| White text | 3.41:1 |
Values
| HEX | #40998B |
| RGB | rgb(64, 153, 139) |
| HSL | hsl(171, 41%, 43%) |
| OKLCH | oklch(62.5% 0.088 181.4) |
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 #40998B | 3.41:1 | AA large text | Lc -66.9 | Content text, not long reading |
| Black text on #40998B | 6.14:1 | AA | Lc 42.6 | Non-text elements, placeholder text |
| #40998B text on white | 3.41:1 | AA large text | Lc 61.4 | Content text, not long reading |
| #40998B text on black | 6.14:1 | AA | Lc -40.3 | 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
#F2F7F6
oklch(97.2% 0.005 183)
-
Step 100
100
#E1EDEA
oklch(93.6% 0.013 179.5)
-
Step 200
200
#C9DFDA
oklch(88.6% 0.024 180.6)
-
Step 300
300
#A3CAC2
oklch(80.9% 0.043 181.3)
-
Step 400
400
#6FAFA3
oklch(70.7% 0.068 181.1)
-
Step 500
500 (this color)
#40998B
oklch(62.5% 0.088 181.4)
-
Step 600
600
#158577
oklch(55.6% 0.095 181.7)
-
Step 700
700
#007164
oklch(49.2% 0.089 181.2)
-
Step 800
800
#0B5C51
oklch(42.7% 0.074 180.6)
-
Step 900
900
#164B43
oklch(37.6% 0.057 181.3)
-
Step 950
950
#0F2C28
oklch(27% 0.036 183.4)
#40998B 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) | #93918A | 0.093 |
| Deuteranopia (no green cones) | #85878C | 0.088 |
| Tritanopia (no blue cones) | #009C95 | 0.024 |
| Achromatopsia (no color) | #8B8B8B | 0.088 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #40998B
#40998B
oklch(62.5% 0.088 181.4)
- #B47184
#B47184
oklch(62.6% 0.088 1.6)
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 #40998B, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Sea #3C9992 ΔE 0.011
- Persian Green #2A9D8F ΔE 0.015
- Blue Green #0F9B8E ΔE 0.021
- Dusty Teal #4C9085 ΔE 0.026
- Grey Teal #5E9B8A ΔE 0.028
- Dull Teal #5F9E8F ΔE 0.033
- Ocean Green #3D9973 ΔE 0.036
- Teal Green #0A9396 ΔE 0.037
Use #40998B 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.