#1983D7
Closest named color: Water Blue (#0E87CC). oklch(59.7% 0.156 249.1), rgb(25, 131, 215).
Aa
Black text reads best on this color (5.26:1).
About this color
#1983D7 is a medium-dark, vivid blue. In OKLCH its lightness is 60%, its chroma 0.156 and its hue 249°. Its hue sits on the cool side of the wheel. The nearest named color is Water Blue (#0E87CC), ΔE 0.022 away. Black text reads best on it, at 5.26:1.
| Hue family | Blues |
| Lightness | medium-dark (60%) |
| Chroma | vivid (0.156) |
| Temperature | cool |
| Nearest name | Water Blue (#0E87CC) |
| Black text | 5.26:1 |
| White text | 3.98:1 |
Values
| HEX | #1983D7 |
| RGB | rgb(25, 131, 215) |
| HSL | hsl(207, 79%, 47%) |
| OKLCH | oklch(59.7% 0.156 249.1) |
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 #1983D7 | 3.98:1 | AA large text | Lc -72.1 | Content text, not long reading |
| Black text on #1983D7 | 5.26:1 | AA | Lc 37.5 | Non-text elements, placeholder text |
| #1983D7 text on white | 3.98:1 | AA large text | Lc 66.6 | Content text, not long reading |
| #1983D7 text on black | 5.26:1 | AA | Lc -35.0 | 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 500.
-
Step 50
50
#F0F6FC
oklch(97% 0.01 247.9)
-
Step 100
100
#DFEBF8
oklch(93.5% 0.022 250.2)
-
Step 200
200
#C4DCF5
oklch(88.5% 0.043 249.4)
-
Step 300
300
#9BC5F0
oklch(80.9% 0.076 249.4)
-
Step 400
400
#60A6E9
oklch(70.7% 0.122 248.9)
-
Step 500
500 (this color)
#1983D7
oklch(59.7% 0.156 249.1)
-
Step 600
600
#0076C8
oklch(55.5% 0.154 249.2)
-
Step 700
700
#0063A9
oklch(49% 0.136 249.1)
-
Step 800
800
#00518C
oklch(42.7% 0.118 249.2)
-
Step 900
900
#044374
oklch(37.6% 0.101 249.3)
-
Step 950
950
#072844
oklch(27% 0.064 248.5)
#1983D7 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) | #5A88DA | 0.051 |
| Deuteranopia (no green cones) | #3B78D5 | 0.031 |
| Tritanopia (no blue cones) | #0097A2 | 0.112 |
| Achromatopsia (no color) | #7F7F7F | 0.156 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #1983D7
#1983D7
oklch(59.7% 0.156 249.1)
- #B06E00
#B06E00
oklch(59.6% 0.13 68.9)
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 #1983D7, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Water Blue #0E87CC ΔE 0.022
- Windows Blue #3778BF ΔE 0.043
- Dark Sky Blue #448EE4 ΔE 0.046
- Cool Blue #4984B8 ΔE 0.055
- Steel Blue #4682B4 ΔE 0.058
- Nice Blue #107AB0 ΔE 0.062
- Clear Blue #247AFD ΔE 0.065
- Blue NCS #118AB2 ΔE 0.065
Use #1983D7 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.