#007DD4
Closest named color: Water Blue (#0E87CC). oklch(57.9% 0.161 249.3), rgb(0, 125, 212).
Aa
Black text reads best on this color (4.88:1).
About this color
#007DD4 is a medium-dark, vivid blue. In OKLCH its lightness is 58%, its chroma 0.161 and its hue 249°. Its hue sits on the cool side of the wheel. The nearest named color is Water Blue (#0E87CC), ΔE 0.033 away. Black text reads best on it, at 4.88:1.
| Hue family | Blues |
| Lightness | medium-dark (58%) |
| Chroma | vivid (0.161) |
| Temperature | cool |
| Nearest name | Water Blue (#0E87CC) |
| Black text | 4.88:1 |
| White text | 4.29:1 |
Values
| HEX | #007DD4 |
| RGB | rgb(0, 125, 212) |
| HSL | hsl(205, 100%, 42%) |
| OKLCH | oklch(57.9% 0.161 249.3) |
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 #007DD4 | 4.29:1 | AA large text | Lc -74.5 | Content text, not long reading |
| Black text on #007DD4 | 4.88:1 | AA | Lc 35.1 | Non-text elements, placeholder text |
| #007DD4 text on white | 4.29:1 | AA large text | Lc 69.0 | Content text, not long reading |
| #007DD4 text on black | 4.88:1 | AA | Lc -32.6 | 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
#F1F6FC
oklch(97.1% 0.01 252.8)
-
Step 100
100
#E0EBF8
oklch(93.6% 0.021 252.5)
-
Step 200
200
#C5DCF3
oklch(88.5% 0.04 248.3)
-
Step 300
300
#9DC5EE
oklch(80.9% 0.072 249.4)
-
Step 400
400
#64A6E6
oklch(70.8% 0.116 249.1)
-
Step 500
500
#338EDE
oklch(63.2% 0.147 249.1)
-
Step 600
600 (this color)
#007DD4
oklch(57.9% 0.161 249.3)
-
Step 700
700
#0063AA
oklch(49.1% 0.137 249.4)
-
Step 800
800
#00518C
oklch(42.7% 0.118 249.2)
-
Step 900
900
#0B4472
oklch(37.8% 0.096 248.8)
-
Step 950
950
#0A2843
oklch(27% 0.061 249.3)
#007DD4 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) | #5083D7 | 0.050 |
| Deuteranopia (no green cones) | #2D72D2 | 0.030 |
| Tritanopia (no blue cones) | #00929E | 0.116 |
| Achromatopsia (no color) | #7A7A7A | 0.161 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #007DD4
#007DD4
oklch(57.9% 0.161 249.3)
- #A96A00
#A96A00
oklch(57.9% 0.126 69.3)
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 #007DD4, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Water Blue #0E87CC ΔE 0.033
- Windows Blue #3778BF ΔE 0.036
- Nice Blue #107AB0 ΔE 0.055
- Cerulean Blue #056EEE ΔE 0.059
- Royal Blue #4169E1 ΔE 0.061
- Cool Blue #4984B8 ΔE 0.063
- Steel Blue #4682B4 ΔE 0.063
- Dark Sky Blue #448EE4 ΔE 0.064
Use #007DD4 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.