#497E8A
Closest named color: Grey Blue (#647D8E). oklch(56.1% 0.059 213.9), rgb(73, 126, 138).
Aa
Black text reads best on this color (4.63:1).
About this color
#497E8A is a medium-dark, muted teal or cyan. In OKLCH its lightness is 56%, its chroma 0.059 and its hue 214°. Its hue sits on the cool side of the wheel. The nearest named color is Grey Blue (#647D8E), ΔE 0.032 away. Black text reads best on it, at 4.63:1.
| Hue family | Teals and cyans |
| Lightness | medium-dark (56%) |
| Chroma | muted (0.059) |
| Temperature | cool |
| Nearest name | Grey Blue (#647D8E) |
| Black text | 4.63:1 |
| White text | 4.53:1 |
Values
| HEX | #497E8A |
| RGB | rgb(73, 126, 138) |
| HSL | hsl(191, 31%, 41%) |
| OKLCH | oklch(56.1% 0.059 213.9) |
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 #497E8A | 4.53:1 | AA | Lc -76.8 | Fine for body text |
| Black text on #497E8A | 4.63:1 | AA | Lc 32.7 | Non-text elements, placeholder text |
| #497E8A text on white | 4.53:1 | AA | Lc 71.4 | Content text, not long reading |
| #497E8A text on black | 4.63:1 | AA | Lc -30.3 | 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 600.
-
Step 50
50
#F3F6F7
oklch(97.1% 0.003 219.5)
-
Step 100
100
#E4EBED
oklch(93.5% 0.008 216.6)
-
Step 200
200
#CFDCDF
oklch(88.6% 0.015 213.1)
-
Step 300
300
#AEC5CB
oklch(80.8% 0.026 215.2)
-
Step 400
400
#83A8B1
oklch(70.7% 0.042 214.2)
-
Step 500
500
#62929E
oklch(63% 0.055 215.1)
-
Step 600
600 (this color)
#497E8A
oklch(56.1% 0.059 213.9)
-
Step 700
700
#396974
oklch(49.1% 0.055 214.2)
-
Step 800
800
#2F565E
oklch(42.8% 0.046 212.3)
-
Step 900
900
#2B474D
oklch(37.8% 0.035 212.7)
-
Step 950
950
#19292D
oklch(26.9% 0.023 215.1)
#497E8A 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) | #757B8B | 0.054 |
| Deuteranopia (no green cones) | #6B738A | 0.050 |
| Tritanopia (no blue cones) | #298382 | 0.034 |
| Achromatopsia (no color) | #767676 | 0.060 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #497E8A
#497E8A
oklch(56.1% 0.059 213.9)
- #94685E
#94685E
oklch(56% 0.059 33.2)
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 #497E8A, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Grey Blue #647D8E ΔE 0.032
- Stormy Blue #507B9C ΔE 0.034
- Cerulean #457B9D ΔE 0.034
- Metallic Blue #4F738E ΔE 0.036
- Battleship Grey #6B7C85 ΔE 0.040
- Ocean #017B92 ΔE 0.043
- Dull Blue #49759C ΔE 0.045
- Teal #008080 ΔE 0.045
Use #497E8A 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.