#497F91
Closest named color: Stormy Blue (#507B9C). oklch(56.6% 0.064 221.5), rgb(73, 127, 145).
Aa
Black text reads best on this color (4.72:1).
About this color
#497F91 is a medium-dark, muted teal or cyan. In OKLCH its lightness is 57%, its chroma 0.064 and its hue 222°. Its hue sits on the cool side of the wheel. The nearest named color is Stormy Blue (#507B9C), ΔE 0.025 away. Black text reads best on it, at 4.72:1.
| Hue family | Teals and cyans |
| Lightness | medium-dark (57%) |
| Chroma | muted (0.064) |
| Temperature | cool |
| Nearest name | Stormy Blue (#507B9C) |
| Black text | 4.72:1 |
| White text | 4.44:1 |
Values
| HEX | #497F91 |
| RGB | rgb(73, 127, 145) |
| HSL | hsl(195, 33%, 43%) |
| OKLCH | oklch(56.6% 0.064 221.5) |
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 #497F91 | 4.44:1 | AA large text | Lc -76.2 | Fine for body text |
| Black text on #497F91 | 4.72:1 | AA | Lc 33.4 | Non-text elements, placeholder text |
| #497F91 text on white | 4.44:1 | AA large text | Lc 70.7 | Content text, not long reading |
| #497F91 text on black | 4.72:1 | AA | Lc -31.0 | 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
#E4EBEE
oklch(93.6% 0.009 225.1)
-
Step 200
200
#CEDCE1
oklch(88.5% 0.017 221.1)
-
Step 300
300
#ADC5CE
oklch(80.8% 0.029 222.4)
-
Step 400
400
#82A8B5
oklch(70.8% 0.045 220.8)
-
Step 500
500
#6192A3
oklch(63.1% 0.058 221.8)
-
Step 600
600 (this color)
#497F91
oklch(56.6% 0.064 221.5)
-
Step 700
700
#376879
oklch(49% 0.06 222.8)
-
Step 800
800
#2E5562
oklch(42.6% 0.049 221.6)
-
Step 900
900
#2A4650
oklch(37.6% 0.038 222.7)
-
Step 950
950
#19292F
oklch(26.9% 0.024 223.4)
#497F91 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) | #747C92 | 0.052 |
| Deuteranopia (no green cones) | #697491 | 0.047 |
| Tritanopia (no blue cones) | #238585 | 0.041 |
| Achromatopsia (no color) | #787878 | 0.064 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #497F91
#497F91
oklch(56.6% 0.064 221.5)
- #976A59
#976A59
oklch(56.6% 0.064 41.6)
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 #497F91, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Stormy Blue #507B9C ΔE 0.025
- Cerulean #457B9D ΔE 0.026
- Grey Blue #647D8E ΔE 0.030
- Metallic Blue #4F738E ΔE 0.035
- Dull Blue #49759C ΔE 0.039
- Teal Blue #01889F ΔE 0.041
- Battleship Grey #6B7C85 ΔE 0.041
- Ocean #017B92 ΔE 0.043
Use #497F91 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.