#19738F
Closest named color: Sea Blue (#047495). oklch(51.8% 0.09 224.4), rgb(25, 115, 143).
Aa
White text reads best on this color (5.39:1).
About this color
#19738F is a medium-dark, moderately saturated teal or cyan. In OKLCH its lightness is 52%, its chroma 0.090 and its hue 224°. Its hue sits on the cool side of the wheel. The nearest named color is Sea Blue (#047495), ΔE 0.010 away. White text reads best on it, at 5.39:1.
| Hue family | Teals and cyans |
| Lightness | medium-dark (52%) |
| Chroma | moderately saturated (0.090) |
| Temperature | cool |
| Nearest name | Sea Blue (#047495) |
| Black text | 3.89:1 |
| White text | 5.39:1 |
Values
| HEX | #19738F |
| RGB | rgb(25, 115, 143) |
| HSL | hsl(194, 70%, 33%) |
| OKLCH | oklch(51.8% 0.09 224.4) |
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 #19738F | 5.39:1 | AA | Lc -81.9 | Fine for body text |
| Black text on #19738F | 3.89:1 | AA large text | Lc 27.6 | Dividers and decoration only |
| #19738F text on white | 5.39:1 | AA | Lc 76.5 | Fine for body text |
| #19738F text on black | 3.89:1 | AA large text | Lc -25.2 | 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 700.
-
Step 50
50
#F1F6F8
oklch(97% 0.006 223.5)
-
Step 100
100
#E1ECF0
oklch(93.6% 0.013 221.4)
-
Step 200
200
#C9DDE5
oklch(88.5% 0.024 223.7)
-
Step 300
300
#A3C7D6
oklch(80.8% 0.044 225.1)
-
Step 400
400
#6FAAC1
oklch(70.6% 0.07 224.6)
-
Step 500
500
#4495B2
oklch(63.1% 0.09 224.5)
-
Step 600
600
#1C7F9D
oklch(55.6% 0.097 223.8)
-
Step 700
700 (this color)
#19738F
oklch(51.8% 0.09 224.4)
-
Step 800
800
#10576D
oklch(42.6% 0.074 224.4)
-
Step 900
900
#184859
oklch(37.7% 0.058 225.1)
-
Step 950
950
#102A34
oklch(27% 0.037 225.8)
#19738F 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) | #637090 | 0.069 |
| Deuteranopia (no green cones) | #54658F | 0.062 |
| Tritanopia (no blue cones) | #007B7C | 0.046 |
| Achromatopsia (no color) | #6A6A6A | 0.090 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #19738F
#19738F
oklch(51.8% 0.09 224.4)
- #93563B
#93563B
oklch(51.7% 0.09 44.2)
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 #19738F, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Sea Blue #047495 ΔE 0.010
- Ocean #017B92 ΔE 0.023
- Ocean Blue #03719C ΔE 0.024
- Deep Aqua #08787F ΔE 0.035
- Muted Blue #3B719F ΔE 0.038
- Peacock Blue #016795 ΔE 0.042
- Metallic Blue #4F738E ΔE 0.043
- Dull Blue #49759C ΔE 0.045
Use #19738F 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.